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Quizalofop-P-ethyl came onto the agricultural scene as farmers demanded more selective solutions for annual and perennial grass weeds in broadleaf crops. By the 1980s, chemical research had shifted away from one-size-fits-all herbicides. Scientists looked for compounds that could target specific grasses without harming main crops like soybeans, sugar beets, or cotton. Quizalofop-P-ethyl, an aryloxyphenoxypropionate, emerged from this era. Chemists studied its selectivity in European and Asian fields and found that it worked well across changing climates. For years, local extension agents recommended quizalofop as more effective than older grass killers, which struggled with resistance problems. This compound now highlights how research priorities have changed from broad impact to targeted control, driven by lessons from weed evolution and changing regulations in the US, Europe, and China.
Quizalofop-P-ethyl functions as a post-emergence herbicide. Farmers spray it on growing weeds. It controls annual and perennial grasses, such as barnyardgrass, foxtail, and wild oat, but leaves most broadleaf crops unharmed. It contains the (R)-isomer, which gets absorbed mainly through leaves. The molecule travels to the roots, disrupting fatty acid synthesis. This pathway, called acetyl-CoA carboxylase inhibition, starves weed cells that depend on these enzymes. Most commercial products present it as an emulsifiable concentrate or an oil-dispersion, made for mixing into the farm’s tank system. Brands like Targa, Assure, and Shogun sell it under various formulations. For applicators, the product is usually measured in milliliters per hectare, which helps keep application precise and safe for non-target plants.
Quizalofop-P-ethyl stands as a pale amber liquid at room temperature, with a mild ester-like odor that fades fast outdoors. Its molecular formula, C19H17ClN2O4, leads to a molecular weight just over 372 g/mol. Its solubility profile gives it an edge: the compound dissolves slightly in water but much more in organic solvents such as acetone and methanol, so manufacturers dissolve it in organic carriers for field use. Quizalofop requires cold storage in tightly sealed containers out of direct sunlight. Over time, high humidity or heat breaks it down into less active components. In the soil, the product doesn’t stick around for long, as microbes degrade it within several weeks, depending on the local biology, so persistent residues show up less often than with older herbicides. These features keep residue levels low in mature crops and minimize off-target drift.
Regulatory frameworks in the US, Europe, and China require strict labeling on quizalofop products. Labels list the active ingredient concentration (usually 50–100 g/L), inert ingredients, batch numbers, and safety warnings. The concentration ensures consistent dosing across various application rates. Technical grade quizalofop must reach at least 95% purity before blending. Storage criteria warn against temperatures above 40°C and exposure to oxidizers. Most products recommend compatible adjuvants to boost leaf absorption but ban mixing with copper-based fungicides or alkaline solutions that break down the ester bond. Disposal directions instruct applicators to avoid dumping unused liquid on fields or near water bodies, as aquatic life shows particular sensitivity. Updated labels now include QR codes or web links for further research on application, safety, and recent regulatory actions.
The synthesis of quizalofop-P-ethyl in modern plants uses a series of known chemical reactions, starting with 6-chloroquinoxaline. Chemists couple this with 2-(4-hydroxyphenoxy)propionic acid, usually by an esterification step in the presence of an acid catalyst. The reaction needs precise temperature controls and slow reagent addition to get the right stereoisomer. Purification happens through crystallization and column chromatography, separating out unwanted isomers and byproducts. Chemical engineers scale this routine to multi-ton batches, recycling solvents to slash waste. Environmental rules now push factories to recover spent acids and limit emissions. Containers are cleaned and inspected before refilling. By refining these methods, manufacturers reach high yields and reproducible purity, which ultimately leads to safer, more effective agricultural products.
Quizalofop-P-ethyl’s core structure includes an ester bond, sensitive to hydrolysis under alkaline or strongly acidic conditions. Researchers found ways to tweak this molecule, swapping out aromatic rings or substituting the alkyl chain, trying to boost selectivity or lengthen weed control. Some labs explored oxime or amide derivatives, but few beat the parent ester in real-world weed control. The main mechanism — blocking acetyl-CoA carboxylase — stays intact, yet side modifications can change environmental persistence or crop safety. Some companies experimented with time-release formulations, coating the molecule to delay breakdown in the soil, which proved hit-or-miss outside dry regions. As resistance grows, chemists consider combo products: quizalofop blended with safeners that shield crops or tank-mixed with other herbicide groups to slow down resistance in fields with two or more weed troublemakers.
Quizalofop-P-ethyl goes by several other names depending on the region and manufacturer. In North America, it commonly appears as Assure II, while Targa and Shogun show up in other global markets. The technical literature often refers to it by its ISO common name, or sometimes lists the IUPAC systematic name: (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate. Agricultural supply chains use shorthand like “quizalofop-ethyl (P-form)” to differentiate from the less active S-isomer. Catalog numbers and chemical codes from big data suppliers simplify tracking and regulation audits. These identity markers help farmers, researchers, and regulators avoid confusion, especially as generic competition expands and regional naming overlaps.
Quizalofop-P-ethyl requires a level-headed approach during application. Applicators wear gloves, goggles, and cartridge respirators to avoid skin contact and inhalation, as skin irritation and eye damage can occur with improper handling. Drift gets controlled by avoiding spraying on windy days and using low-pressure nozzles. Spills get contained with absorbent pads and collected for proper disposal. Farms often train workers on emergency clean-up and first aid in case of accidental contact. Recent field experience shows that quizalofop rarely contaminates groundwater due to its low soil persistence, but aquatic organisms are vulnerable, especially with direct runoff, so buffer zones around streams or ponds are standard. Regulations enforce re-entry intervals (usually a day or two), so workers avoid exposure when the risk is highest. Grain and oilseed crops, tested before harvest, stay within regulated residue limits, meeting stringent export standards set by importing countries.
Quizalofop-P-ethyl finds its main use in broadleaf crops. Soybean, canola, and sugar beet growers rely on it to handle grass weeds that sneak past pre-emergence herbicides. It also appears in non-crop land management and sometimes in orchards or vineyards. The product works best on actively growing grasses between two leaves and tillering. Spray timing plays a big part—too early, and weeds regrow; too late, and they're too tough to control. Application rates run from 50 to 125 grams per hectare, but local extension programs encourage lower rates and tank mixing for resistance management. Farms rotate quizalofop with other groups or use it as part of integrated weed management, which combines cultural and mechanical controls, hoping to delay weed resistance while keeping fields clean.
Ongoing research tackles the challenge of weed resistance, environmental safety, and improving selectivity. University field trials track resistance emergence, testing cross-resistance with older FOP and DIM herbicides. Recent papers from Europe highlight biotype mapping, which allows growers to map treatment failures and avoid overuse. Formulation chemistry moves toward lower-drift, low-odor options that suit modern application equipment. Researchers screen safeners and adjuvants to protect more sensitive crops and stretch the usefulness of quizalofop’s mode of action. Companies fund residue trials and collaborate with regulatory agencies to refresh maximum residue level data, making sure global crop exports stay competitive. Conferences now showcase new findings using digital farming and satellite mapping to optimize spray timing and detect resistance hotspots before they spread.
Toxicologists studied quizalofop in animal models and long-term field exposure studies. Acute toxicity stays low for mammals, with high LD50 values by oral and dermal routes, but the compound can cause irritation and, rarely, allergic skin reactions. Aquatic toxicity rates higher than for land animals, pressing for increased field buffer and drift restraint. Chronic feeding studies in rodents turned up no cancer link or reproductive harm at practical exposure levels. Researchers test its breakdown and metabolite profiles in food crops, making sure no harmful residues linger past harvest. Regulatory agencies update safety thresholds, including operator exposure and re-entry intervals, using these data. Farms and research groups keep close watch for new toxicological concerns so both food and farm workers stay protected.
The future of quizalofop-P-ethyl depends on resistance patterns and regulatory acceptance. Grass weeds like Italian ryegrass and wild oat build resistance when overexposed, pushing demand for combination products and smarter weed mapping. Biotechnology steers crop development toward tolerance or improved recovery from quizalofop, trying to broaden the range of compatible crops. Regulation keeps tightening, especially in Europe, so cleaner formulations and safer adjuvants will drive new sales, or at least maintain access in sensitive markets. Field experience and academic research push for integrated weed management systems, blending chemical, cultural, and mechanical methods. Farmers will rely less on single-molecule solutions, but quizalofop’s selectivity keeps it relevant. As digital agriculture tracks resistance and adjusts spray zones, quizalofop will play its best role in rotation and as part of a complex, diversified weed control plan, giving modern farming practical options without sacrificing food safety or soil health.
Weed control gives growers a constant headache, especially as fighting grass weeds in fields takes time, money, and a lot of sweat. Quizalofop-P-Ethyl helps tackle that struggle. This chemical turns up in fields planted with broadleaf crops such as soybeans, sugar beets, canola, and cotton. It focuses on wiping out grassy weeds that steal sunlight and nutrients. Clethodim and fluazifop are alternatives, but many growers stick with quizalofop because it gets tough wild oats, foxtail, barnyardgrass, and volunteer cereals.
Quizalofop-P-Ethyl acts as a selective systemic herbicide. What that means out in the field: spray it on growing grass weeds, and the chemical moves through leaves to the roots, shutting down growth. Over a week or so, the unwanted grass yellows out and dies. The crop, supported by quizalofop’s selectivity, stays mostly unharmed.
That selectivity isn’t an accident. Chemical engineers design these herbicides so they target enzymes found in grasses but not in most broadleaf plants. Years ago, farmers would have relied on hand-pulling or plowing and probably lost some of their crops fighting the weed war. Today’s targeted weed control saves backbreaking work and lets the main crop soak up more water and nutrients.
Safety matters a lot in agriculture. Regulatory agencies in the US, Canada, the EU, and other countries have approved quizalofop-P-ethyl, but not without strict reviews. Field studies show that the chemical breaks down in soil and water. Crops do not retain high levels at harvest time. Even so, quizalofop’s use comes with careful instructions: protective gear for handlers, tight rules on how close spraying happens near waterways, and specific timing so residues stay within food safety limits.
Risks to human health seem low under normal farm practices. The Environmental Protection Agency (EPA) provides clear guidance, noting that chronic exposure in diet or water stays below danger levels thanks to restricted application rates. Wildlife studies find low risk to most mammals and birds, but the compound does cause harm to fish if misused near rivers or ponds.
One challenge with herbicides like quizalofop-P-ethyl is the threat of resistance. Overusing a single product year after year teaches some weeds to survive. Walk any big commercial farm and you’ll hear growers trading stories about resistant wild oats or barnyardgrass pushing back after years of spraying. Diversifying control methods helps slow resistance. Mixing up chemical products, rotating crops, and mixing in mechanical tactics like cultivation or hand-pulling can all make a difference.
Every input on the farm costs money, and quizalofop-P-ethyl runs more expensive than some older chemicals. But, the time and yield savings from avoiding weed choke can tip the balance. For more sustainable agriculture, both public and private research are developing new ways to target only the unwanted plants. Farmers keep looking for smarter systems that reduce chemical sprays without risking crop losses.
Up-to-date facts and transparent product labeling make it easier for farmers and the public to understand what’s being used on fields each season. Transparency helps everyone make better choices about what lands on dinner plates and what washes down creeks. That builds trust in a system stretched between old traditions and new science.
Farmers have always wrestled with weeds. Grasses like wild oats, crabgrass, and foxtail are a real headache. Quizalofop-P-ethyl steps in as a tool that helps row-crop farmers gain the upper hand. This herbicide targets grass weeds, allowing crops such as soybeans, potatoes, and sugar beets to grow without fighting for water and nutrients.
The magic of quizalofop-P-ethyl happens inside the plant. It travels from the weed's leaves down to its roots and shoots. Once it gets there, it blocks the plant from making fatty acids. These are building blocks in grass weeds—without them, cells stop dividing and growing. Within days, signs of stress show up. Leaf tips start yellowing. Growth slows to a crawl. Once the weed dries up, it leaves behind more space and sun for the crop.
Quizalofop-P-ethyl focuses on “post-emergence” weed control. It only works after the weed has sprouted and has some leaf area, not before. That kind of precision reduces the chance of damaging crops that don’t belong to the grass family. Human ingenuity really shows through in how the chemistry targets grass weeds yet leaves broadleaf crops largely unharmed.
From years in the field, farmers appreciate any tool that saves labor, fuel, and time. Spraying quizalofop-P-ethyl, you can knock out grass weeds across broad acres. For smaller-scale growers, it can mean more harvest without the back-breaking work of hand-pulling weeds. Even folks running large commercial outfits still check weed pressure patches. If resistance pops up, they rotate herbicides or pair quizalofop-P-ethyl with others in a strategy to prevent the same weeds from coming back stronger next season.
Safety always matters. The EPA and global agencies keep tabs on residue levels to make sure our food stays safe. Quizalofop-P-ethyl breaks down with sunlight and water over time. Following label directions remains the best way to keep residues well below accepted limits. Looking at studies, quizalofop-P-ethyl doesn’t stick around in water or soil the way some older chemicals used to.
No single weed killer holds all the answers. Overreliance leads to resistance. Some farms started seeing grass weeds able to shrug off quizalofop-P-ethyl in spots where it got sprayed year after year. The answer isn’t to spray more, but to mix things up. Rotating crops and herbicides, using different families of weed killers, and rotating chemicals help keep weeds guessing. Mechanical options still work; tillage and crop rotation disrupt weed life cycles in ways chemicals can’t. Cover crops throw shade on sprouting weeds, cutting their sunlight long before herbicides come into play.
Quizalofop-P-ethyl doesn’t make weeds disappear forever, but it keeps fields manageable. Farmers who balance chemistry with other weed control steps get better long-term results. Crop specialists keep an eye on research for new blends and best practices to help farms stay productive. Staying informed, following label use, and working with extension specialists builds a foundation for smarter, safer use of every tool at hand. Protecting food supply and keeping land healthy both matter, and that’s where smart weed management comes in.
Out in the fields, weed control matters. Farmers have to choose tools that match their crops and their environment. Quizalofop-P-Ethyl finds its way into many discussions where grassy weeds threaten yield. I’ve spent years working alongside farmers and agronomists, testing what keeps the fields clean and the harvest strong. Some chemicals work quietly in the background, but Quizalofop-P-Ethyl lands right in the spotlight because of its focus on tough grassy weeds.
Soybean fields across North America and Asia rely on this herbicide. Soybeans don’t fall victim to it, but many stubborn grasses do. Farmers double down on Quizalofop-P-Ethyl when annual and perennial grasses—like barnyardgrass, Johnsongrass, and foxtail—take over. Refined application lets other legumes such as dry beans and lentils also thrive without grassy invaders draining nutrients.
Beyond soybeans and pulses, Quizalofop-P-Ethyl supports oilseeds. Canola, for example, stands tall as one of the core broadleaf crops protected this way. Peanut growers especially value this option in the southern United States and parts of Asia. Here, grassy competition hits hard, but peanuts brush off the treatment and keep filling the rows with healthy pods.
Cereals, including wheat, barley, and corn, won’t tolerate Quizalofop-P-Ethyl. These crops share too many genetic similarities with the weeds being targeted. Applying this herbicide here damages the crop itself. Many fruits and vegetables—including tomatoes, potatoes, carrots—don’t regularly appear on labels either, so sticking with labeled crops saves money, protects yield, and meets food safety standards.
One mistake with chemical selection costs more than just lost yield. I’ve watched neighbors fight off tough grass infestations only to suffer drift damage to sensitive crops nearby. The solution usually starts with a walk across the fields with a good agronomist, scouting the right target weeds, and double-checking labels. Programs that teach farmers proper tank cleanout and nozzle selection make an impact too, reducing the risk of drift and helping those working on neighboring crops stay in business.
Relying on chemistry sometimes leads to weeds building resistance. Local extension services often recommend farmers rotate crops and chemicals. That mix can include changing planting dates, using mechanical controls, or mixing in a different class of herbicide. Scouting stands as non-negotiable. Those regular trips through the field help spot new weed patches early before they take hold. In my experience, early detection and acting before the problem explodes makes a season far less stressful.
Quizalofop-P-Ethyl won’t suit every need, but when used in line with crop safety, solid scouting, and clear spray boundaries, it can be a reliable piece of the weed control puzzle for soybeans, pulses, oilseeds, and peanuts. The right fit means fewer sprays, less money down the drain, and a better shot at a clean, profitable harvest for everyone.
Farmers often reach for Quizalofop-P-Ethyl to control grassy weeds in soybeans, potatoes, and other crops. The promise is clear: wipe out the weeds, protect yields, keep food on our tables. If you don't work in agriculture, this chemical usually just sounds like a tongue-twister buried in small print on a pesticide label. But the reach goes far beyond tractors and fields. Real people, real communities—these chemicals turn up in the air, in the water, and on the fruits and vegetables that end up in kitchens across the country.
Manufacturers and regulators point to safety tests and “acceptable residue levels,” yet the track record for agricultural chemicals often shows surprises down the road. Quizalofop-P-Ethyl gets singled out for targeting only grass-family weeds. That sounds reassuring, but its breakdown products can stick around in soil and water longer than most would expect. Studies show traces of this herbicide in groundwater samples—sometimes near vulnerable water supplies. The push to feed everyone can create pressure to lean on quick fixes, missing the chance to think about long-term impacts.
Research on Quizalofop-P-Ethyl’s health effects sketches a blurry picture. Lab tests on rats and rabbits show toxic effects only at high doses. No clear evidence links it to cancer in humans. But then there’s a gap: The daily reality for farmworkers, rural residents, and kids exposed through water or food doesn’t always show up in the studies. Farmers I’ve talked to mostly wear basic gloves; not everyone uses the full respirator gear seen in lab safety videos. Drift from sprayed fields can settle on neighboring playgrounds or vegetable gardens. Government agencies say the risks for consumers who eat treated crops “remain low,” but they often base these assurances on short-term tests. Kids and pregnant women, in particular, don’t need extra threats in their environments.
The fate of Quizalofop-P-Ethyl in the outdoors raises more questions than answers. This herbicide targets grass, but it doesn’t check if grass lines a riverbank or belongs in a wetland. Reports show drift harming wild plants and aquatic life. Insect populations take a hit too—knocking out host plants for caterpillars and pollinators. The health of an ecosystem isn’t just nice on paper; it protects drinking water, brings food to tables, and keeps nature balanced. Where farm fields border water, even a small shift can cascade into bigger trouble downstream.
There’s no magic fix for weed control or food production. Some groups teach farmers to use less chemical spray, rotate crops more, and keep buffer strips near streams. Others push for tighter rules on testing and approving pesticides, especially before they show up in communities' water wells. Grocery shoppers can favor produce from farms using fewer chemicals, but real change happens when policy and community expectations push industry to innovate. Supporting research into safer weed control, promoting organic options, and demanding more transparent testing help close the safety gap.
Quizalofop-P-Ethyl offers a tool, not a panacea. Prioritizing human health and environmental care can’t rest on a promise from one chemical label. Listening to farmers, doctors, ecologists, and families who live near fields gives a better chance for balanced choices. Protecting food supplies counts, but not at the cost of drinking water or children’s future health. Real food security grows from soil that’s alive, water that’s clean, and policies shaped by clear-eyed trust and experience.
Quizalofop-P-Ethyl stands out as a selective post-emergence herbicide, targeting grassy weeds in crops like soybeans, potatoes, cotton, and broadleaf vegetables. Over the years, many farmers, especially those managing broadleaf fields, have counted on this chemical for clean rows and healthy yields. The key lies in correct use—dose too low and the weeds bounce back, too much and you risk harming your own crop or the environment.
Recommended rates float between 50 to 100 milliliters per hectare. For most annual grasses, that 50 ml mark usually does the trick. If wild oats or more persistent grasses threaten your crop, you might find that edge closer to 100 ml per hectare works better. Experience tells me that going above these ranges only brings risk—of resistance and overspray—without better control.
Some weeds show up later or stick around on field edges, especially after a stretch of rain. Resisting the urge to blanket-spray always pays off in the long run. Walk the rows, spot check, and record what types of grass show up each season. If foxtail or barnyardgrass surprise you mid-summer, adjust the following year's plan instead of doubling down in one day.
Quizalofop-P-Ethyl blends best with water, at ratios that allow full leaf coverage but avoid runoff. Ground sprayers using 200 to 400 liters of water per hectare offer the most even coverage. I've learned not to cut corners—clogged nozzles or tired pumps leave patches full of stubborn weeds.
Apply this herbicide on sunny mornings when grass weeds grow actively, aiming for the two- to four-leaf stage on annuals. Early spraying leaves less room for weeds to root deep and compete for fertilizer or moisture. Avoid windy days—drift can reach neighboring crops, upsetting other farmers and sometimes making headlines if a bad drift catches tomatoes or melons.
Adding a non-ionic surfactant in the spray mix helps the product stick, especially if you expect light showers within a few hours. Surfactants turn what used to be a weak spot—insufficient wetting—into a minor detail. But always check your crop's leaf type and stress level before mixing in extras.
No one talks about personal safety enough. Gloves, goggles, and covered skin keep exposure low. At the end of spraying, a good wash will do more than most realize. Even small spills, when cleaned right away, prevent slips and keep chemicals from tracking into homes.
Regions often set pre-harvest intervals—usually 60 to 75 days between last spray and picking. Local extension officers know the current guidance and restrictions, so I check labels and official updates before planning my last round. Enough time before harvest keeps residues far below food safety limits.
Clogged nozzles and uneven pressure sabotage the best intentions. Routine equipment checks and flushing lines before each season keep sprayers running evenly. Small fixes each spring have saved me from expensive mistakes in August. If unexpected weed escapes happen, rotating modes of action next season avoids resistance and protects your investment in herbicides.
Quizalofop-P-Ethyl rewards attention to detail. With careful measurement, good equipment, and attention to timing, fields stay clean, yields go up, and environmental risk stays low—less guesswork, fewer regrets.
| Names | |
| Preferred IUPAC name | Ethyl (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propanoate |
| Other names |
Aresin Assure Ethyl Quizalofop-P Gallant Lasso Pantera Targa Quizz Quizalofop-Ethyl Quizalofop-P-ethyl Quizalofop-P-ethyl ester |
| Pronunciation | /kwɪˈzæl.əˌfɒp pi ˈɛθ.ɪl/ |
| Identifiers | |
| CAS Number | [100646-51-3] |
| Beilstein Reference | 1722088 |
| ChEBI | CHEBI:9008 |
| ChEMBL | CHEMBL147647 |
| ChemSpider | 120909 |
| DrugBank | DB11433 |
| ECHA InfoCard | EC number: 401-660-6 |
| EC Number | 3.1.1.88 |
| Gmelin Reference | 86390 |
| KEGG | C14418 |
| MeSH | D017979 |
| PubChem CID | 69191 |
| RTECS number | TK9315000 |
| UNII | NB8M0J02UV |
| UN number | “UN3082” |
| Properties | |
| Chemical formula | C19H17ClN2O4 |
| Molar mass | 416.5 g/mol |
| Appearance | Colorless to pale yellow transparent liquid |
| Odor | Odorless |
| Density | ρ: 1.175 g/cm³ |
| Solubility in water | 0.48 mg/L (20 °C) |
| log P | 3.4 |
| Vapor pressure | 2.5 × 10⁻⁶ mmHg (25 °C) |
| Acidity (pKa) | pKa = 3.55 |
| Basicity (pKb) | 13.93 |
| Magnetic susceptibility (χ) | -61.5×10^-6 cm³/mol |
| Refractive index (nD) | Refractive index (nD): 1.468 |
| Viscosity | Viscosity: 3.31 mPa·s (20 °C) |
| Dipole moment | 3.85 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 537.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -127.6 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -8602.8 kJ/mol |
| Pharmacology | |
| ATC code | QJ964 |
| Hazards | |
| GHS labelling | GHS02, GHS07, GHS09 |
| Pictograms | GHS02,GHS07,GHS09 |
| Signal word | Warning |
| Hazard statements | H226, H304, H312, H315, H317, H319, H332, H410 |
| Precautionary statements | P102, P261, P264, P270, P271, P272, P273, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362+P364, P391, P501 |
| NFPA 704 (fire diamond) | 2-2-1- ج |
| Flash point | 87°C |
| Autoignition temperature | 425°C |
| Lethal dose or concentration | LD50 (oral, rat): 1,733 mg/kg |
| LD50 (median dose) | LD50 (median dose): 1,740 mg/kg |
| NIOSH | XN8575000 |
| PEL (Permissible) | 0.02 mg/L |
| REL (Recommended) | 50-100 g a.i./ha |
| Related compounds | |
| Related compounds |
Quizalofop Quizalofop-P-tefuryl Propaquizafop Difenoxuron Fenoxaprop-P-ethyl |
