Description

Fluazifop-p-butyl (CAS No. 79241-46-6) is a highly effective post-emergence herbicide belonging to the aryloxyphenoxypropionate (AOPP) class. With the molecular formula C₁₉H₂₀F₃NO₄, this selective systemic herbicide is widely used for controlling annual and perennial grass weeds in broadleaf crops, including soybeans, cotton, and sugar beets. Its active enantiomer, (R)-fluazifop-butyl, ensures superior herbicidal activity by inhibiting acetyl-CoA carboxylase (ACCase), a critical enzyme in fatty acid biosynthesis.

Available in various formulations such as emulsifiable concentrates (EC), this product is known for its rapid absorption and translocation within target weeds, leading to desiccation and death within days. Its low volatility and favorable environmental profile make it a preferred choice for integrated weed management programs. Suitable for professional agricultural use, Fluazifop-p-butyl is compliant with global regulatory standards and is often marketed under trade names like Fusilade and PP005.

Properties

• CAS Number: 79241-46-6
• Complexity: 453
• IUPAC Name: butyl (2R)-2-[4-[[5-(trifluoromethyl)-2-pyridyl]oxy]phenoxy]propanoate
• InChI: InChI=1S/C19H20F3NO4/c1-3-4-11-25-18(24)13(2)26-15-6-8-16(9-7-15)27-17-10-5-14(12-23-17)19(20,21)22/h5-10,12-13H,3-4,11H2,1-2H3/t13-/m1/s1
• InChI Key: VAIZTNZGPYBOGF-CYBMUJFWSA-N
• Exact Mass: 383.13444261
• Molecular Formula: C19H20F3NO4
• Molecular Weight: 383.4
• SMILES: CCCCOC(=O)[C@@H](C)OC1=CC=C(C=C1)OC2=NC=C(C=C2)C(F)(F)F
• Topological: 57.7
• Monoisotopic Mass: 383.13444261
• Synonyms: FLUAZIFOP-P-BUTYL, 79241-46-6, Fusilade II, Fusilade super, Fusilade S, Fusilade 2000, Fusilade DX, Fusilade 5, PP005 2E Herbicide, Fluazifop-P-butyl [ISO], Fluazifop-P butyl ester, PP 005, EPA Pesticide Chemical Code 122809, N99K0AJ91S, FUSILADE FORTE, Butyl (R)-2-[4-(5-trifluoromethyl-2-pyridyloxy)phenoxy]propionate, CHEBI:132964, Butyl (R)-2-(4-(5-trifluoromethyl)-2-pyridyloxy)phenoxypropionate, butyl (2R)-2-(4-{[5-(trifluoromethyl)pyridin-2-yl]oxy}phenoxy)propanoate, (+)-Fluazifop-butyl, Propanoic acid, 2-(4-((5-(trifluoromethyl)-2-pyridinyl)oxy)phenoxy)-, butyl ester, (2R)-, Propanoic acid, 2-(4-((5-(trifluoromethyl)-2-pyridinyl)oxy)phenoxy)-, butyl ester, (R)-, butyl (R)-2-{4-[5-(trifluoromethyl)-2-pyridyloxy]phenoxy}propionate, butyl (2R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoate, Propanoic acid, 2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]-, butyl ester, (2R)-, butyl (r)-2-(4-(5-trifluoromethyl-2-pyridyloxy)phenoxy)propionate, butyl (2R)-2-(4-((5-(trifluoromethyl)-2-pyridinyl)oxy)phenoxy)propanoate, butyl (2R)-2-(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)phenoxy)propanoate, butyl (R)-2-(4-(5-(trifluoromethyl)-2-pyridyloxy)phenoxy)propionate, 616-669-2, Propanoic acid, 2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]-, butylester, (2R)-, butyl (2R)-2-[4-[5-(trifluoromethyl)pyridin-2-yl]oxyphenoxy]propanoate, DTXSID0034855, Fluazifop-P-butyl 10 microg/mL in Acetone, BRN 1510062, Fluazifop-P-butyl(>95%), UNII-N99K0AJ91S, Fuazifop-P-butyl, Fluazafop-P-butyl, Butyl (R)-2-(4-((5-(trifluoromethyl)-2-pyridinyl)oxy)phenoxy)propanoate, SCHEMBL55176, BIDD:ER0605, Fluazifop-P-butyl (Standard), CHEMBL1864569, DTXCID8014855, HY-B2007R, HY-B2007, Tox21_301193, AKOS015896007, NCGC00163739-01, NCGC00163739-02, NCGC00163739-03, NCGC00164281-01, NCGC00255091-01, AS-83737, CAS-79241-46-6, CS-0014108, NS00098605, EN300-7482582, Fluazifop-P-butyl 100 microg/mL in Acetonitrile, Q1430447, Fluazifop-P-butyl, PESTANAL(R), analytical standard, Z3234883621, (R)-Butyl 2-(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)phenoxy)propanoate, Butyl (R)-2-(4-((5-(trifluoromethyl)pyridin-2-yl)oxy)phenoxy)propanoate

Fluazifop-p-butyl is primarily applied as a foliar spray to control grass weeds in broadleaf crops such as soybeans, peanuts, and vegetables. It exhibits systemic action, rapidly translocating to meristematic tissues to disrupt lipid synthesis. Optimal results are achieved when applied at early growth stages of weeds (2-4 leaf stage). Compatible with tank mixes, it should not be used under drought conditions or when rain is expected within 2 hours. Always follow label instructions for crop-specific rates and safety precautions.

Safety and Hazards

GHS Hazard Statements

• H361d: Suspected of damaging the unborn child [Warning Reproductive toxicity]
• H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P203, P273, P280, P318, P391, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (20.1%)
• Skin Sens. 1 (14.4%)
• Repr. 2 (31.4%)
• Repr. 2 (68.6%)
• Aquatic Acute 1 (100%)
• Aquatic Chronic 1 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.