Propetamphos

Favorites

Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Propetamphos

中文通用名

胺丙畏

IUPAC

(RS)-[(E)-O-2-isopropoxycarbonyl-1-methylvinyl O-methyl ethylphosphoramidothioate]

CAS

1-methylethyl (2E)-3-[[(ethylamino)methoxyphosphinothioyl]oxy]-2-butenoate

CAS No.

31218-83-4

Molecular Formula

C₁₀H₂₀NO₄PS

Molecular Structure

General Product Information

Category

Insecticides > Organophosphorus insecticides
Acaricides / Miticides > Organophosphorus acaricides

Activity

Insecticide

Physical & Safety Data

Physical Properties

Yellowish oily liquid boiling at 87-89°C at 0.005 mm Hg, d420 1.1294, n20 1.495. Thermostability is very good; hydrolytic stability at 24°C in an aqueous buffered solution is dependent on the pH values – at pH 3, 6, 9 the half-lifes are roughly 11, 365, and 41 days respectively. Soluble in most organic solvents.

Toxicology

Oral:Acute oral LD₅₀ for male rats 119, female rats 59.5 mg/ kg. Percutaneous:Acute percutaneous LD₅₀ for male rats 2825, female rats >2260 mg/ kg. Inhalation: LC₅₀ (4 h) for male rats >1.5, female rats 0.69 mg/l air.

Environmental Profile

Ecotoxicology:
Algae: LC₅₀ (96 h) for green algae 2.9 mg/l.Birds:Acute oral LD₅₀ for mallard ducks 197 mg/ kg.Daphnia: LC₅₀ (48 h) 14.5µg/l.Fish: LC₅₀ (96 h) for carp 7.0 mg/l; for rainbow trout 4.6 mg/ kg diet.

Environmental fate:
Animals:In rats, propetamphos is completely metabolised and rapidly excreted, mainly via urine and exhaled air. The oxidative metabolic process leading to CO₂ formation predominates at lower doses. Propetamphos is detoxified through hydrolytic reactionSoil:Residual activity indoors can be as much as 2-3 months. WATER SOLUBILITY: 110 ppm at 24°C HAZARDS: Fish: LC₅₀ 6.4 mg/l (96 h) (carp)

Transport Information

Signal Word:WARNING; Hazard Class:Ib(Highly hazardous)