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Chemical Identification
Common Name
Famphur
中文通用名
伐灭磷
IUPAC
O-4-dimethylsulfamoylphenyl O,O-dimethyl phosphorothioate
or
4-dimethoxyphosphinothioyloxy-N,N-dimethylbenzenesulfonamide
CAS
O-[4-[(dimethylamino)sulfonyl]phenyl] O,O-dimethyl phosphorothioate
CAS No.
52-85-7
Molecular Formula
C10H16NO5PS2
Molecular Structure
Physical Properties
Molecular weight:325.3; Physical form:Colourless, crystalline powder. Melting point:52.5-53.5 °C; Solubility:Sparingly soluble in water. In aqueous isopropanol (45%) 23 g/ kg (20 °C); in xylene 300 g/ kg (5 °C); soluble in acetone, carbon tetrachloride, chloroform, cyclohexanone, dichloromethane, toluene; sparingly soluble in alip; Stability:Stable at ambient temperatures >19 months.;
Toxicology
Oral:Acute oral LD50 for male rats 35, female rats 62, male mice 27 mg tech./ kg. Percutaneous:Acute percutaneous LD50 for albino rabbits 2730 mg/ kg; the PO formulation produces eye and skin irritation. Inhalation:No deaths occurred in rats exposed 7.5 h at 24 mg/l air.
Environmental Profile
Ecotoxicology: Birds:Acute oral LD50 for hens 30 mg/ kg.
Transport Information
Hazard Class:Ib(Highly hazardous)

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