Mefenpyr-diethyl , Analysis standard , 135590-91-9

Synonym(s):
1-(2,4-Dichlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylic acid diethyl ester

CAS NO.：135590-91-9

Empirical Formula: C16H18Cl2N2O4

Molecular Weight: 373.23

MDL number: MFCD09753375

EINECS: 201-006-8

PRODUCT Properties

• Melting point: 50-52°
• Boiling point: 451.1±55.0 °C(Predicted)
• Density: 1.34±0.1 g/cm3(Predicted)
• vapor pressure: 0-0.001Pa at 20-50℃
• storage temp.: Sealed in dry,Room Temperature
• solubility: Chloroform (Slightly), Methanol (Slightly)
• pka: -5.89±0.70(Predicted)
• form: Solid
• color: Off-White to Light Beige
• Water Solubility: Water: < 0.1 mg/mL (insoluble)
• InChI: InChI=1S/C16H18Cl2N2O4/c1-4-23-14(21)12-9-16(3,15(22)24-5-2)20(19-12)13-7-6-10(17)8-11(13)18/h6-8H,4-5,9H2,1-3H3
• InChIKey: OPGCOAPTHCZZIW-UHFFFAOYSA-N
• SMILES: N1(C2=CC=C(Cl)C=C2Cl)C(C)(C(OCC)=O)CC(C(OCC)=O)=N1
• LogP: 4 at 25℃ and pH4-9
• CAS DataBase Reference: 135590-91-9(CAS DataBase Reference)
• NIST Chemistry Reference: Mefenpyr-diethyl(135590-91-9)
• EPA Substance Registry System: Mefenpyr-diethyl (135590-91-9)

Description and Uses

Mefenpyr-diethyl is a foliar-acting safener of the pyrazoline chemical group, and after its absorption, the metabolization and detoxification of herbicides occur in treated plants. It is often used with fenoxaprop-P-ethyl and iodosulfuron for selective weed control in cereals. However, it does not have herbicidal activity.

Mefenpyr-diethyl is used in herbicidal and herbicide-safener combinations as a resistant breaking solution for modern agriculture.

Safety

• Symbol(GHS): GHS09
• Signal word: Warning
• Hazard statements: H411
• Precautionary statements: P273-P391-P501
• Hazard Codes: N
• Risk Statements: 51/53
• Safety Statements: 60-61
• RIDADR: UN 3077
• WGK Germany: 3
• RTECS: UQ6473000
• HS Code: 2933.19.4300
• HazardClass: 9
• PackingGroup: III
• Toxicity: Log P (octanol/water): 3.83 (pH 6.3, 21°). LD50 in rats (mg/kg): >5000 orally, >4000 dermally; LC50 in carp (mg/l): 2.4 (Hacker)