Title: Propetamphos
CAS Registry Number: 31218-83-4
CAS Name: (
E)-3-[[(Ethylamino)methoxyphosphinothioyl]oxy]-2-butenoic acid 1-methylethyl ester
Synonyms: (
E)-3-hydroxycrotonic acid isopropyl ester
O-ester with
O-methyl ethylphosphoramidothioate;
(E)-1-methylethyl 3-[[(ethylamino)methoxyphosphinothioyl]oxy]-2-butenoate;
(E)-O-2-isopropoxycarbonyl-1-methylvinyl
O-methyl ethylphosphoramidothioate
Manufacturers' Codes: SAN-322I
Trademarks: Catalyst (Wellmark)
Molecular Formula: C10H20NO4PS
Molecular Weight: 281.31
Percent Composition: C 42.70%, H 7.17%, N 4.98%, O 22.75%, P 11.01%, S 11.40%
Literature References: Prepn: J. P. Leber, K. Lutz,
DE 2035103 corresp to
US 3758645 (1971, 1973 to Sandoz). Activity: W. Berg, R. Gothe,
Proc. Br. Crop Prot. Conf. - Pests Dis. 1979, 517.
Properties: Yellowish liquid, bp0.005 87-89°.
nD20 1.495. d420 1.1294. Soly in water at 24°: 110 mg/l. Sol in most organic solvents. LD50 orally in male rats: 82 mg/kg (Berg, Gothe).
Boiling point: bp0.005 87-89°
Index of refraction: nD20 1.495
Density: d420 1.1294
Toxicity data: LD50 orally in male rats: 82 mg/kg (Berg, Gothe)
Use: Insecticide.
Therap-Cat-Vet: Ectoparasiticide.