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CAS No 87674-68-8 , 2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-(1-methoxypropan-2-yl)acetamide

  • Name: 2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-(1-methoxypropan-2-yl)acetamide
  • Synonyms: Frontier Herbicide;2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-(1-methoxypropan-2-yl)acetamide; 2-Chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethyl)acetamide; 87674-68-8; San 682H; Dimethenamid [ISO];
  • CAS Registry Number:
  • Density: 1.195 g/cm3
  • Refractive index: 1.551
  • Safety Statements: R22
  • Hazard Symbols: Xn: Harmful;
  • Molecular Weight: 275.79482
  • InchiKey: JLYFCTQDENRSOL-UHFFFAOYSA-N
  • InChI: InChI=1S/C12H18ClNO2S/c1-8-7-17-10(3)12(8)14(11(15)5-13)9(2)6-16-4/h7,
    9H,5-6H2,1-4H3
  • Risk Statements: R22
  • Molecular Formula: C12H18ClNO2S
  • Molecular Structure:CAS No:87674-68-8 2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-(1-methoxypropan-2-yl)acetamide

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References of 2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-(1-methoxypropan-2-yl)acetamide
Title: Dimethenamid
CAS Registry Number: 87674-68-8
CAS Name: 2-Chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethyl)acetamide
Manufacturers' Codes: SAN-582H
Trademarks: Frontier (BASF); Guardsman (BASF)
Molecular Formula: C12H18ClNO2S
Molecular Weight: 275.79
Percent Composition: C 52.26%, H 6.58%, Cl 12.86%, N 5.08%, O 11.60%, S 11.63%
Literature References: Preemergence herbicide for use in food crops. Prepn: K. Seckinger et al., GB 2114566; eidem, US 4666502 (1983, 1987 both to Sandoz). Bioactivity of stereoisomers: M. Couderchet et al., Pestic. Sci. 50, 221 (1997). Comprehensive description: J. Harr et al., Proc. Br. Crop Prot. Conf. - Weeds 1991, 87-92. Review of field trials and persistence in soil: A. Rahman, T. K. James, Proc. 45th N. Z. Plant Prot. Conf. 1992, 84-88.
Properties: Yellowish-brown, viscous liquid. Odorless to weak tar-like odor. Mixture of 4 stereoisomers (1RS,aRS). bp26.7 Pa 127°. Vapor pressure (25°): 36.7 mPa. d25 1.187. Soly (25°): water 1174 mg/l; heptane 28.2 g/100 g; isooctane 22.0 g/100 g; ether, kerosene, ethanol >50%. LD50 in rats (mg/kg): 1570 orally; >2000 dermally; LC50 in bluegill sunfish, rainbow trout (mg/l): 6.4, 2.6 (Harr).
Boiling point: bp26.7 Pa 127°
Density: d25 1.187
Toxicity data: LD50 in rats (mg/kg): 1570 orally; >2000 dermally; LC50 in bluegill sunfish, rainbow trout (mg/l): 6.4, 2.6 (Harr)
 
Derivative Type: Dimethenamid P
CAS Registry Number: 163515-14-8
Synonyms: DMTA-P
Manufacturers' Codes: BAS-656H
Trademarks: Outlook (BASF)
Literature References: Consists of the 1S,aRS isomers. Prepn: K. Seckinger et al., US 5457085 (1995 to Sandoz). Review of properties and activity: T. Guillet et al., Phytoma 546, 50-53 (2002).
Properties: Faintly yellow viscous liquid. [a]D23 +3.5° (c = 1.102 in CH3OH). bp9.3 Pa 122.6°. d20 1.195. Vapor pressure (25°): 2.5 ′ 10-3 Pa. Soly in water (25°): 1449 mg/l. LD50 in rats (mg/kg): 429 orally; >2000 dermally. LC50 (96 hr) in rainbow trout (mg/l): 6.3 (Guillet).
Boiling point: bp9.3 Pa 122.6°
Optical Rotation: [a]D23 +3.5° (c = 1.102 in CH3OH)
Density: d20 1.195
Toxicity data: LD50 in rats (mg/kg): 429 orally; >2000 dermally; LC50 (96 hr) in rainbow trout (mg/l): 6.3 (Guillet)
 
Use: Herbicide.