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CAS No 24934-91-6 , chloromethylsulfanyl-diethoxy-sulfanylidene-λ

  • Name: chloromethylsulfanyl-diethoxy-sulfanylidene-λ
  • Synonyms: 5-phosphane;chloromethylsulfanyl-diethoxy-sulfanylidene-λ Caswell No. 195B; Dotan; Chlormefos;Chlormethylfos; Chlormephos [BSI:ISO]; S-(chloromethyl) O,O-diethyl ester; Phosphorodithioic acid;
  • CAS Registry Number:
  • Transport: 3018
  • Flash Point: 104.7°C
  • Boiling Point: 249.5°Cat760mmHg
  • Density: 1.295g/cm3
  • Refractive index: 1.526
  • Safety Statements: Poison by inhalation, ingestion and skin contact. Symptoms may include nausea, vomiting, abdominal cramps, diarrhea, excessive salivation, headache, giddiness, weakness, muscle twitching, difficult breathing, blurring or dimness of vision, and loss of muscle coordination. Death may occur from failure of the respiratory center, paralysis of the respiratory muscles, or intense bronchoconstriction. An organophosphorus pesticide. Combustible. For small fires, use dry chemical, carbon dioxide, water spray, or foam. For large fires, use water spray, fog, or foam. When heated to decomposition it emits toxic fumes of Cl, POx, and SOx.
  • Hazard Symbols: T+: Very toxic;N: Dangerous for the environment;
  • Flash Point: 104.7°C
  • EINECS: 246-538-1
  • Molecular Weight: 234.704342
  • InChI: InChI=1S/C5H12ClO2PS2/c1-3-7-9(10,8-4-2)11-5-6/h3-5H2,1-2H3
  • Risk Statements: 27/28-50/53
  • Molecular Formula: C5H12ClO2PS2
  • Molecular Structure:CAS No:24934-91-6 chloromethylsulfanyl-diethoxy-sulfanylidene-λ
References of chloromethylsulfanyl-diethoxy-sulfanylidene-λ
Title: Chlormephos
CAS Registry Number: 24934-91-6
CAS Name: S-(Chloromethyl)phosphorodithioic acid O,O-diethyl ester
Synonyms: chlormethylfos; O,O-diethyl S-(chloromethyl)dithiophosphate
Manufacturers' Codes: MC-2188
Trademarks: Dotan (Calliope S.A.); Sherman (Calliope S.A.)
Molecular Formula: C5H12ClO2PS2
Molecular Weight: 234.70
Percent Composition: C 25.59%, H 5.15%, Cl 15.11%, O 13.63%, P 13.20%, S 27.32%
Literature References: Non-systemic cholinesterase inhibitor. Prepn: O. Scherer et al., DE 1015794; eidem, GB 817360 (1957, 1959 both to Hoechst); W. W. Brand et al., Phosphorus Sulfur 10, 183 (1981). Photodegradation: S. J. Buckland, R. S. Davidson, Pestic. Sci. 19, 61 (1987). TLC/MS determn in biological samples: H. Brzezinka, N. Bertram, J. Chromatogr. Sci. 40, 609 (2002). Review of physical properties and field trials: F. Colliot et al., Proc. Br. Insect. Fungic. Conf. 7th 2, 557-565 (1973); physical properties and residue analysis: V. P. Lynch, Anal. Methods Pestic. Plant Growth Regul. 10, 49-55 (1978).
Properties: Water-white oil. bp1mm 93-95°; bp0.1 Torr 81-85°. Vapor pressure (30°): 5.7 x 10-2. Miscible with most organic solvents. Soly in water (20°): 60 ppm. d20 1.260. nD220 1.5244. uv max (ethanol): 208 nm. LD50 in rats (mg/kg): 7 orally; 27 dermally. LC50 in fish: 1.5 mg/l (Lynch).
Boiling point: bp1mm 93-95°; bp0.1 Torr 81-85°
Index of refraction: nD220 1.5244
Absorption maximum: uv max (ethanol): 208 nm
Density: d20 1.260
Toxicity data: LD50 in rats (mg/kg): 7 orally; 27 dermally; LC50 in fish: 1.5 mg/l (Lynch)
Use: Insecticide primarily for soil applications.