Formothion
Title: Formothion
CAS Registry Number: 2540-82-1
CAS Name: Phosphorodithioic acid S-[2-(formylmethylamino)-2-oxoethyl] O,O-dimethyl ester
Additional Names: phosphorodithioic acid O,O-dimethyl ester S-ester with N-formyl-2-mercapto-N-methylacetamide; S-(N-formyl-N-methylcarbamoylmethyl) O,O-dimethyl phosphorodithioate
Manufacturers' Codes: J-38; OMS-968
Trademarks: Aflix (Sandoz); Anthio
Molecular Formula: C6H12NO4PS2
Molecular Weight: 257.27
Percent Composition: C 28.01%, H 4.70%, N 5.44%, O 24.88%, P 12.04%, S 24.93%
Literature References: Prepn: Lutz, Schuler, GB 900557 (1962 to Sandoz). Toxicity: K. Liesche, Dtsch. Apoth. 108, 604 (1968), C.A. 69, 26287y (1968).
Properties: Yellowish liq, mp ~25°. Practically insol in water. Miscible with alcohols, ether, chloroform, benzene. LD50 in rats, rabbits (mg/kg): 350, 410 orally (Liesche).
Melting point: mp ~25°
Toxicity data: LD50 in rats, rabbits (mg/kg): 350, 410 orally (Liesche)
CAUTION: Cholinesterase inhibitor. See Parathion.
Use: Acaricide, systemic insecticide.

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