Ronnel

Title: Ronnel
CAS Registry Number: 299-84-3
CAS Name: Phosphorothioic acid O,O-dimethyl O-(2,4,5-trichlorophenyl)ester
Additional Names: fenchlorphos; dimethyl trichlorophenyl thiophosphate
Trademarks: Trolene (Dow); Etrolene (Dow); Nankor (Dow); Korlan (Dow); Viozene
Molecular Formula: C8H8Cl3O3PS
Molecular Weight: 321.55
Percent Composition: C 29.88%, H 2.51%, Cl 33.08%, O 14.93%, P 9.63%, S 9.97%
Literature References: Cholinesterase inhibitor. Prepn: Schrader, DE 814152 (1948 to Bayer); Moyle, US 2599516 (1952 to Dow). Description of mfg process: Can. Dept. Agr. Bull. (3rd ed., Oct. 1957) p 136. Toxicity study: T. B. Gaines, Toxicol. Appl. Pharmacol. 14, 515 (1969).
Properties: White powder, mp 41°. Vapor pressure at 25°: 8´10-4 mm Hg. Practically insol in water (0.004 g/100 ml at 25°). Freely sol in acetone, carbon tetrachloride, ether, methylene chloride, toluene, kerosene. LD50 in male, female rats (mg/kg): 1250, 2630 orally (Gaines).
Melting point: mp 41°
Toxicity data: LD50 in male, female rats (mg/kg): 1250, 2630 orally (Gaines)
CAUTION: Potential symptoms of overexposure in exptl animals are cholinesterase inhibition; eye irritation; liver and kidney damage. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 274.
Use: Insecticide.
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