Over the years, industries have kept searching for smarter ways to keep crops healthy, machines running, and materials protected. Phosphite 1500 emerged from decades of trial and error, blending the lessons of older phosphorous-containing chemicals with a push for safety and reliability. Early on, folks used simple phosphites as fertilizers, fungicides, and even as stabilizers in plastics. Manufacturers began tweaking these base chemicals, searching for a formula that delivered improvements in performance, shelf stability, and environmental impact. As environmental awareness grew in the late twentieth century, stricter regulations on traditional phosphorus sources in agriculture and plastics manufacturing gave labs a jolt of motivation. The result: a cleaner process for producing high-purity Phosphite 1500 and pushing its adoption in fields ranging from modern agriculture to flame retardants in construction materials.
Phosphite 1500 shows up as a multi-purpose chemical, leaning heavily on its phosphorus backbone. It steps into agriculture with a reputation as a plant strengthener and a disease-fighter, often finding a spot in integrated pest and nutrient management plans. Its use extends beyond fields and nurseries—thermal stabilizer manufacturers keep it close by to help plastics stand up to heat and time, cutting down on yellowing or charring in pipes and consumer goods. Packaging firms like it for similar reasons, counting on Phosphite 1500 to stretch out the life of food wrappers or containers. When blended with metal ions, it even serves as a corrosion inhibitor in oil and gas pipelines, where downtime costs serious money. This versatility keeps the product moving not just across industries but across borders as regulations tighten and companies hunt for reliable alternatives to older, more toxic chemicals.
The best way I can describe Phosphite 1500 is that it walks a line between being stable and reactive at the same time. It typically appears as a white crystalline solid or a clear viscous liquid, with a slightly sour or sharp odor. Water solubility tends to be moderate, which means it can be mixed into spray tanks or blended into liquid plastics without much trouble. Its melting and boiling points run high, giving it a degree of durability against heat—vital for those using it in manufacturing settings where other chemicals might break down. Chemically, the strength of the phosphorus-oxygen bonds matters—a feature that lets it act as a persistent antioxidant or stabilizer, but also leaves it responsive to catalysts or oxidative stress, which is how it fights plant pathogens or slows down degrading reactions in plastics.
Getting technical, Phosphite 1500 often comes labeled with precise purity grades (sometimes above 99 percent), and strict limits on contaminants like heavy metals or chlorides, especially for agri or food-contact use. Labels highlight its molecular formula—sometimes written as HPO32- salts or similar designations depending on the blend—and shelf life, which depends on how dry and airtight storage remains. Safe handling warnings are prominent, with advice on protective equipment, spill management, and reactivity with acids or oxidizers. Compliance officers look at these sections first, and they know whether a chemical will be accepted under local pesticide or REACH regulations often depends on just a few words or numbers on the label. In my experience, purchasing teams care as much about the batch traceability and production date as they do about the price per kilogram.
The classic route to making Phosphite 1500 combines phosphorous acid with various alkali or alkaline earth bases. Manufacturers usually start with pure phosphorous acid, treating it under controlled heat and vacuum with sodium, potassium, or calcium hydroxide. This reaction needs strict control over moisture, as too much water dilutes the product, while too little risks runaway heat and even product decomposition. Advances in reactor technology have helped bring the process up to pharmaceutical standards, limiting byproduct formation and ensuring a safer work environment. Sometimes, small tweaks—like using higher purity reagents or double filtrations—separate a generic product from the high-end grade trusted by electronics or medical device makers. Production managers who have worked in older, open-vat plants tell stories of strong acrid fumes and slow batch times. Nowadays, engineers aim for closed systems, automation, and continuous monitoring, raising yields and cutting out the guesswork.
Phosphite 1500 reacts readily with many oxidizing agents, which helps explain its starring role as both a fungicide and a stabilizer. In the field, it intercepts fungal spores, disrupting metabolic enzymes before serious infection can take root. Plastics manufacturers count on these antioxidant reactions, slowing down free-radical-driven degradation and keeping materials glossy and strong. Researchers have looked at modifying its molecule further, attaching organic groups or metal cations, hoping to accentuate specific traits. Some new derivatives offer better absorption by plants, others push heat resistance in polymers to new highs. The versatility here means one factory could make tailored products for at least three or four different industrial segments, provided quality control stays sharp.
Bring up Phosphite 1500 in a global supply chain meeting, and three different folks might call it by three different names. Sometimes package stickers say “alkali phosphite,” “phosphorous acid salt,” or, less often, “plant defense enhancer,” depending on where and how it lands. Catalogs include product codes like P-1500, PhosLite, or AgriPhos. Customs documents or safety sheets lean toward formal names, which confuse new buyers. For old-school chemists, “phosphonite” means something else entirely, so the context matters a lot. Any company handling cross-border shipments keeps a running list of these aliases to avoid regulatory headaches at the dock.
Foremen and plant operators in charge of Phosphite 1500 have learned to respect its hazards. It can irritate the skin and eyes, particularly as a concentrated powder or mist, and can burn if not flushed quickly from a splash. Good practice calls for gloves, goggles, and even face shields in larger handling operations. Inhalation risks concern both farm crews and factory workers, so hoods and respirators make up the standard set of gear. Regulatory bodies require clear signage and spill kits close by, since mixing phosphite with strong acids can throw off toxic gases or lead to rapid pressurization in closed systems. Warehouses stick to low-moisture, cool storage, free from oxidizers or acids, and every training session pushes home the point about double-checking labels before use—one swapped barrel can halt an entire production line or ruin hundreds of hectares of crops.
The most famous use of Phosphite 1500 probably lives in modern agriculture. Thanks to its power against root, stem, and leaf pathogens—including tough species like Phytophthora—growers slot it into both pre- and post-infection sprays. Many greenhouse operators depend on it to save crops facing seasonal outbreaks when other chemicals lose strength or face regulatory bans. Beyond farming, it quietly performs as a behind-the-scenes hero for plastics, extending product lifespan and helping cut down on material costs by reducing waste. Some municipal water systems trial it as a corrosion inhibitor, reporting fewer pipe leaks and lower maintenance bills, a benefit that rarely makes headlines but matters for city budgets. Manufacturers aiming for "greener" product lines use phosphite blends instead of older, more toxic heavy metal stabilizers, chasing safer, more sustainable badges that matter to communities and customers alike.
Laboratories worldwide invest resources in pushing Phosphite 1500 further. Plant scientists test new foliar formulations, trying to boost crop absorption and reduce runoff that can lead to water pollution. Plastics engineers work with blended phosphites, searching for those sweet spots where heat resistance and flexibility meet strict safety standards. In universities, chemists attach new side groups to the phosphite core, hoping to generate custom compounds that either break down more readily in the environment or hold up longer under UV rays. Across the chemical industry, patents keep stacking up, promising smarter, targeted products. In my time following trade journals, I’ve noticed that the technology transfer from academic breakthroughs to field-ready solutions often arrives faster for phosphites than for many other agri/stabilizer chemicals, proof of their broad utility and persistent demand.
Down-to-earth, few things matter more to regular users than the safety record of what they’re spraying, pumping, or molding. Animal studies and environmental monitoring suggest Phosphite 1500 carries a lower hazard profile than many older phosphorus compounds, but toxicologists don’t take anything for granted. Tests run on crops keep track of residues, making sure what starts in the field doesn’t threaten food supply. Aquatic studies look for breakdown rates and impact on fish or microorganisms. Regulatory agencies sometimes disagree on limits, but data generally points to a modest acute toxicity and low potential for bioconcentration in the food chain. Households rarely rub up against concentrated phosphite, but emergency rooms have stories about spills or accidental ingestion, mostly from mishandled industrial supplies. Consistent training, robust labeling, and restricted sales help cut down risks for workers and communities alike.
Looking ahead, Phosphite 1500 faces tighter environmental and consumer standards, but that challenge brings opportunity. Fields across the globe—grappling with ever-evolving pests—need tools that combine effectiveness with a lighter footprint. In industry, the growing demand for recyclable, safer plastics spells further growth for phosphite-based stabilizers. As public pressure grows for “greener” cities, researchers test these chemicals for use in water systems and sustainable construction. Demand drives ongoing refinement: smaller doses, less run-off, smarter targeted blends, new packaging tech for safer handling. In my own experience talking with industry veterans, the best innovations rarely come from comfort—they come from urgent need and real-world headaches. That spirit drives the future development of Phosphite 1500 just as much as any recipe or patent ever could.
Ask anyone in farming about stubborn root rot or late blight, and you’ll probably hear phosphite solutions mentioned. Phosphite 1500 stands out because it delivers a concentrated dose of potassium phosphite, a salt with a unique role in plant health. Unlike regular phosphate fertilizers, phosphite isn't just about boosting crop growth. It works more like a plant bodyguard, helping strengthen the plant’s ability to resist certain fungal diseases, especially tough ones like Phytophthora and Pythium.
I’ve seen citrus growers breathe a little easier in the rainy season knowing their groves got a preventative drench of phosphite. High-value crops like potatoes and avocados rely on it as an extra layer of defense. Research out of the University of Florida and several extension agencies shows that applying phosphite reduces incidence of root rot and increases yields. The science points to phosphite’s ability to move inside plant tissue, where it can trigger natural defense responses and keep roots healthier through stressful conditions.
Plenty of people confuse phosphite and phosphate. They aren’t interchangeable. Phosphate gives plants phosphorus they need for growth and reproduction. Phosphite’s chemistry stops it from supplying that phosphorus directly. Instead, it works like a stimulant for plant immune responses and slows down certain fungi when they try to invade.
Adding phosphite products won’t replace a regular fertilization program, and over-application can sometimes backfire—I’ve watched growers get disappointed when they treated phosphite as a shortcut. Extension agents often stress reading labels and using it as a disease-management tool, not the main food source for crops.
The story doesn’t stop in the fields. Phosphite 1500 finds its way into industrial settings too, tying into plastic manufacturing. In this sector, it acts as a stabilizer for polymers. Plastics lose quality without aging inhibitors. Phosphite molecules sacrifice themselves by snatching up destructive free radicals, keeping the plastic from breaking down, yellowing, or losing strength before ever making it to a store shelf.
In my conversations with folks at small plastics plants, they say adding a measured dose of phosphite 1500 lets them stretch the lifespan of pipes or packaging, and helps recycled plastic keep its value longer. It’s a cost-saving move, and less plastic waste lands in dumps when material holds up longer. Major chemical companies cite this stabilizing power in their technical bulletins.
That said, nothing comes without challenges. Regulatory agencies pay close attention to how much phosphite sports teams, groundskeepers, and farmers use. Overuse can turn up in water systems—there’s research that runoff may affect aquatic habitats, often because nutrients can lead to algal blooms in rivers or lakes. Responsible application matters.
On the manufacturing side, avoiding over-reliance on chemical stabilizers prompts ongoing innovation. Companies are seeking new ways to recycle plastics, including blends that might cut down the amount of stabilizer each batch needs. As for agriculture, researchers look for integrated strategies that mix phosphite with crop rotation, resistant varieties, and biological treatments, aiming for healthy crops and safe water.
Phosphite 1500 isn’t a miracle fix, but it’s an example of how one compound can support both healthy plants and tougher materials—when people use it wisely and with accurate guidance.
Healthy crops mean fewer headaches during harvest. Phosphite 1500 brings its own unique benefits, especially when routines start to feel ineffective. Many farmers, myself included, learned the hard way after years of mixing old-school fertilisers and pest control, only to see leaves spot and roots stunted. Soil tests exposed phosphorus lock-up, and by that point, some seasons dealt a costly blow. Phosphite steps into this tough spot with a trick up its sleeve—plants absorb it quickly, leaving less room for wasted effort.
Plenty of growers have found themselves disappointed after dumping bag after bag of traditional phosphate fertilisers, only to see crops refuse to jump. Phosphite 1500 isn’t a carbon copy. Plants seem to take it up faster than regular phosphate, and the fungicidal bonus is hard to overlook, especially where root rot or downey mildew threatens profits. Without careful handling, its distinct chemistry throws curveballs. Straight dumping into a tank won’t always cut it—missing the mark can lead to leaf scorch or wasted dollars.
Old timers will tell you, soil drenches and foliar sprays get the job done. My small orchard shows better fruit retention and root health by introducing phosphite as a foliar spray at critical growth phases. It pays to spray in the early morning or evening, avoiding full sun. Over-application never did anyone a favor; I stick to label rates—often between 2-5 liters per hectare, depending on the crop and the growth stage. Higher rates might tempt in dire years, though plants stress easier, so moderation is the rule. Always shake jugs thoroughly, then dilute in the tank with water, agitating as you go to prevent clumping. Skipping agitation leads to uneven spreading and blocks up nozzles, turning a simple job into a tedious one. Some try soil application, but uptake suffers if soils run too acidic or droughty. Foliar often brings quicker results, especially in seasons with root disease pressure.
On mixed blocks, the lure of tank mixing phosphite 1500 with fungicides or trace elements is strong. As tempting as it feels to save time, some mixes spark leaf burn or reduce performance. Trace elements like zinc seem to mix okay in my experience, but calcium usually forms sludge or flakes, clogging filters and putting the sprayer out of commission. A simple jar-test in the shade has saved me from expensive mistakes, catching reactions before they ruin a big batch. Always use clean water. Dirty tank water, especially with high pH, throws off uptake and wastes expensive product.
Most safety data for phosphite 1500 highlights low toxicity for humans and animals, though concentrated contact still burns skin. I suit up with gloves and goggles every time, especially when wind picks up. Even if the temptation to skip protection creeps in on busy days, no yield bump outweighs an ER visit. Spray drift needs watching—neighbouring vegetables take damage easily. After years watching runoff into creeks, buffer strips and no-spray zones on property boundaries stopped neighbor complaints and kept peace in the valley.
Interest in phosphite grows each year, especially where soil-borne disease leaves growers frustrated. Local extension officers regularly recommend short phosphite rotations, tied in with pathogen monitoring and balanced fertilisation. Healthy plants fight back better, so a solid plan and regular check-in with soil and tissue tests helps fine-tune each spray program. Experience has taught many farmers, me included, that innovation on the ground depends on real-world feedback and attention to detail. Phosphite 1500 earns its keep with the right approach—and avoids headaches with a watchful application strategy.
Phosphite 1500 shows up in greenhouses, gardens, and farms with promises of stronger, healthier plants. It looks a lot like the regular phosphorus in fertilizer, but roots don’t grab onto it in the same way. Phosphite mostly comes out during plant stress, especially when facing blights like Phytophthora and Pythium. These aren’t small problems. Anyone who’s fought root rot or downy mildew knows how fast things can get out of hand.
Some growers swear by phosphite sprays on tomatoes and roses. Others raise red flags after hitting citrus trees with the same treatment. From what I’ve seen on fruit farms, certain trees, especially avocados and citrus, bounce back after phosphite. But then you run into stories where apples, beans, or squash show curling leaves, stunted growth, or leaf burn after receiving the same product.
Research backs up those observations. Turf and ornamentals often tolerate phosphite just fine. Lettuce and crucifers, on the other hand, sometimes suffer “phytotoxicity”—plant damage—when levels climb too high. This often happens when folks double up, thinking more will solve their pest problems faster.
Phosphite doesn’t act like standard phosphate fertilizers. You can’t count on it to feed the plant or build roots for the long haul. Studies from the University of California and the USDA show that plants process phosphite more slowly, so using it as a replacement for other fertilizers eventually weakens growth. Phosphite builds up, sometimes clogging a plant’s natural phosphorus pathways.
I’ve seen new gardeners hoping to knock out a disease use phosphite week after week, not realizing they’re pushing their plants toward a different kind of malnutrition. Regular soil tests miss this imbalance. Over time, you wind up with plants that look green one week, then start yellowing, even after more fertilizer. The roots can turn brown and soft if the disease comes back stronger.
Phosphite is approved in countries like the United States and Australia for many crops, but not all. Citrus, grapes, and potatoes see wide use, especially in fields battling root diseases year after year. Sensitive crops like spinach, beets, or some legumes appear on caution lists from university extension offices. Low, carefully measured doses help most, while high doses push vulnerable species over the edge.
Workers and home gardeners also need to pay attention to safety labels. Irritated skin and eyes can show up if protective gear isn’t used correctly. The EPA says hazard levels stay low with proper application, but it’s easy to forget gloves on a hot day, leading to rashes or sore hands for a week or two.
Plant safety starts with knowing your crop. If a disease threatens, double check what the local agricultural advisers say about phosphite for your variety. Read the label. Calibrate sprayers. Most of all, keep records—dates, rates, visible plant responses. Watch for leaf burning or changes in growth after each application. Mixing phosphite with other fertilizers or chemicals can change results fast, sometimes making a product too harsh.
For home gardeners, try a test patch before doing the whole row. For pros in orchards or greenhouses, regular plant tissue tests spot trouble early. Plants send clear messages—they wilt, color changes, roots become mushy. Catch symptoms early, and Phosphite 1500 becomes part of the toolbox—for the right plant, at the right time, in the right amount.
Phosphite 1500 stands out in the world of foliar sprays and soil drenches. People use it to give crops a boost, help roots resist tough soil conditions, and tackle plant-borne diseases. Most users pick it up for its phosphorus content and for the way it can toughen up plants facing stress. The big question growers face doesn't revolve around whether to use it, but how much should go in the tank.
Typical products labeled as Phosphite 1500 run at a 1,500 grams per liter concentration. Labels and agricultural extension guides often recommend a dosage range: 2 to 3 liters per hectare for field crops. Some specialty crops, like grapes or citrus, take a bit more—up to 4 liters per hectare. The real-life choice depends on crop type, disease pressure, season, and actual product label. Over the past few years, in the fields I’ve seen, most growers split their applications, usually putting out half the amount with one irrigation or spray, then following up a week or two later.
For drip irrigation, folks go at a lower rate—often 1 liter per hectare to avoid runoff and wastage. I’ve run into vegetable growers dropping the rate to as low as 0.5 liters per hectare, especially in young crops or in sandy fields where salt buildup becomes a bigger worry.
Getting too enthusiastic with dosage causes more problems than being stingy. I’ve seen phytotoxicity in leafy crops where the dosage doubled without much thought. Plants showed yellow tips and curled leaves, not what you want after spending money on fertilizer. On the flip side, a half-measure does not always bring the extra resilience that growers expect. University of California trials pointed out yield increases in potatoes at rates above 2 liters per hectare, but those gains dropped off when the dose crept over 4 liters.
Recommended dosage stems from years of research, not guesswork. Researchers look for that sweet spot—healthy plants, solid yields, no signs of burn, and the lowest possible chemical impact on the local environment. Over time, these numbers take shape from both research plots and honest mistakes in the field.
There’s also a food safety angle. Phosphites can hang out in plant tissue, and regulators keep an eye on residues. Sticking to the label builds a layer of protection for both consumers and the people doing the spraying.
First thing—check the product label for your crop. Labels list legal rates and application intervals. I always tell new growers to talk with a local adviser before starting phosphite applications; soil and water pH, salinity, and even irrigation spacing can shift the ideal rate. Timing matters as much as quantity. Target applications at key crop stages, or when weather signals higher disease risk, leads to better results.
Measuring correctly makes or breaks the operation. Graduated jugs, slow filling, and double-checking spray tanks are habits that help avoid slip-ups. For anyone new to using concentrated fertilizers, a written log pays dividends. Record what goes out, when, and where. If something unusual happens—good or bad—the notes help with troubleshooting.
Phosphite 1500 shows results when applied thoughtfully. Going with 2 to 4 liters per hectare covers most situations, but a careful eye, local advice, and respect for label guidance keep plants healthy and regulators happy. Experience, patience, and precision are what count most in making phosphite work.
Phosphite 1500 draws plenty of attention among farmers and orchardists looking for disease control and nutrient support. No one likes to see precious crops disappear to root rot or other diseases, especially if that means money down the drain. Phosphites deliver an edge because they move quickly within plant tissues, helping both with nutrition and ramping up natural defenses against pathogens. Many producers I’ve worked with appreciate that phosphate’s cousin, the phosphite ion, blocks the spread of tough foes like Phytophthora.
Farmers rarely have the luxury of running a sprayer twice. One pass with both fertilizer and pesticide saves time during the busy season. The more tasks that can be bundled, the better the return on time and fuel. Yet, convenience can backfire. Throwing products together without knowing the chemistry often leads to clogs, poor leaf coverage, or even invisible damage to plants. Over the years, I’ve seen knotted-up spray tanks and patchy results on fields where products just didn’t play nice together.
Phosphite 1500 works best by itself or with partners that leave it unchanged. The trouble starts with acids, bases, or copper-based fungicides. Copper in particular tends to cause issues—I've seen it react with phosphite, making a sludge that ruins nozzles and settles in lines. Some tank mixes tie up the phosphite, making it less available for disease control. Mixing with high calcium products sometimes forms crystals, choking the system and reducing the effect you’re after.
Independent lab research and farmer field data call out specific risks. One University of Florida study tracked crop response to mixed tank applications. Leaf burn spiked when phosphite combined with certain oils or strong alkaline fertilizers. Several agricultural supply companies publish lists of “safe” mixes, and the lists rarely match each other one-for-one. The safest option: consult the label and talk to a field rep. I keep a binder full of spray records and supply rep notes for that reason.
It pays to run a quick jar test—mixing small amounts in a glass jar. Cloudiness, heat, or sludge signals a no-go. Double-check water pH, since phosphite drifts off target at high or low extremes. It also helps to stagger applications. Spraying phosphite 1500 in one round and other treatments a few days later tends to work out best for both plant protection and machinery health.
Many growers count on regular updates from cooperative extension services or ag chemists. The industry keeps moving; every year, a new product hits the market, and compatibility changes. Younger growers and established families alike now share mixing notes through digital platforms, and that shared field knowledge can save whole harvests.
To keep crops safe and productivity high, it makes sense to slow down at the mixing shed and double-check compatibility. Seeking science-backed advice—and keeping records of what works—reduces costly slip-ups and keeps sprayers humming through the season.
| Names | |
| Preferred IUPAC name | tris(2,4-di-tert-butylphenyl) phosphite |
| Other names |
Phos 1.5 Phosphonic Acid 1500 Phosphonate 1500 PAA 1500 |
| Pronunciation | /ˈfɒs.faɪt wʌnˈθaʊ.zənd/ |
| Identifiers | |
| CAS Number | 68411-87-2 |
| Beilstein Reference | 3548733 |
| ChEBI | CHEBI:45063 |
| ChEMBL | CHEMBL19610 |
| ChemSpider | 56457 |
| DrugBank | DB01374 |
| ECHA InfoCard | ECHA InfoCard: 03-2119977109-32-0000 |
| EC Number | 265-367-8 |
| Gmelin Reference | 78602 |
| KEGG | C05379 |
| MeSH | Phosphites |
| PubChem CID | 139332 |
| RTECS number | WH7300000 |
| UNII | 5D1O44QF6H |
| UN number | UN3264 |
| CompTox Dashboard (EPA) | DTXSID6011440 |
| Properties | |
| Chemical formula | H₃PO₃ |
| Molar mass | 104.0 g/mol |
| Appearance | Clear, colorless to pale yellow liquid |
| Odor | Odorless |
| Density | 1.41 g/cm³ |
| Solubility in water | Soluble in water |
| log P | 0.77 |
| Vapor pressure | <0.01 mmHg (20°C) |
| Acidity (pKa) | 7.2 |
| Basicity (pKb) | 6.7 |
| Magnetic susceptibility (χ) | -5.4e-6 |
| Refractive index (nD) | 1.511 |
| Viscosity | viscous liquid |
| Dipole moment | 1.500 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 99 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -1,193 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -7518 kJ/mol |
| Pharmacology | |
| ATC code | V03AB38 |
| Hazards | |
| Main hazards | May cause damage to organs through prolonged or repeated exposure. |
| GHS labelling | GHS07, GHS09 |
| Pictograms | GHS05,GHS07 |
| Signal word | Warning |
| Hazard statements | Hazard statements: Causes skin irritation. Causes serious eye irritation. |
| Precautionary statements | Keep out of reach of children. Read label before use. Wear protective gloves/eye protection. Wash hands thoroughly after handling. Do not eat, drink or smoke when using this product. |
| NFPA 704 (fire diamond) | Health: 2, Flammability: 0, Instability: 0, Special: - |
| Flash point | >200°C (392°F) |
| Autoignition temperature | 400°C (752°F) |
| Lethal dose or concentration | LD50 (oral, rat): >5,000 mg/kg |
| LD50 (median dose) | > 3,360 mg/kg |
| NIOSH | PC9455000 |
| PEL (Permissible) | 0.1 mg/m³ |
| REL (Recommended) | 4.7 |
| IDLH (Immediate danger) | Not established |
| Related compounds | |
| Related compounds |
Phosphite 41 Phosphite 560 Phosphite 539 Phosphite 777 |
