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3792-59-4

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Basic Information
CAS No.: 3792-59-4
Name: EPBP
Article Data: 1
Molecular Structure:
Molecular Structure of 3792-59-4 (EPBP)
Formula: C14H13 Cl2 O2 P S
Molecular Weight: 347.202
Synonyms: Phosphonothioicacid, phenyl-, O-(2,4-dichlorophenyl) O-ethyl ester (7CI,8CI,9CI); Phenol,2,4-dichloro-, O-ester with O-ethyl phenylphosphonothioate (8CI); EPBP; O-EthylO-(2,4-dichlorophenyl) phenylphosphonothioate; O-Ethyl O-2,4-dichlorophenylthionobenzenephosphonate; S-Seven
Density: 1.37g/cm3
Boiling Point: 415.6°Cat760mmHg
Flash Point: 205.2°C
Safety: Poison by ingestion. Moderately toxic by subcutaneous route. When heated to decomposition it emits very toxic fumes of Cl−, SOx, and POx. See also ESTERS.
PSA: 60.36000
LogP: 5.69430
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Chemistry

IUPAC  Name: (2,4-Dichlorophenoxy)-ethoxy-phenyl-sulfanylidene-(l,5)-phosphane   
Molecular Formula: C14H13Cl2O2PS
Molecular Weight: 347.20
Freely Rotating Bonds: 5
Polar Surface Area: 60.36 Å2
Index of Refraction: 1.613
Molar Refractivity: 87.59 cm3
Molar Volume: 251.6 cm3
Polarizability: 34.72 ×10-24 cm3
Surface Tension: 55 dyne/cm
Density: 1.37 g/cm3
Flash Point: 205.2 °C
Enthalpy of Vaporization: 64.28 kJ/mol
Boiling Point: 415.6 °C at 760 mmHg
Vapour Pressure: 9.79E-07 mmHg at 25 °C 
Classification Code: Agricultural Chemical; Insecticide; Out-dated pesticide
Molecular structure of S-seven (CAS NO.3792-59-4) is.

Uses

 S-seven (CAS NO.3792-59-4) is used in organic synthesis.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral > 1500mg/kg (1500mg/kg)   Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes. Vol. 17, Pg. 611, 1982.
mouse LD50 oral 274mg/kg (274mg/kg)   Japan Pesticide Information. Vol. (7), Pg. 31, 1971.
mouse LD50 subcutaneous 784mg/kg (784mg/kg)   "Pesticide Index," Frear, E.H., ed., State College, PA, College Science Pub., 1969Vol. 5, Pg. 105, 1976.
mouse LD50 unreported 330mg/kg (330mg/kg)   Rinsho Shinkeigaku. Clinical Neurology. Vol. 23, Pg. 101, 1983.

Safety Profile

Poison by ingestion. Moderately toxic by subcutaneous route. When heated to decomposition it emits very toxic fumes of Cl−, SOx, and POx.
RIDADR: 3018
HazardClass: 6.1(b)
PackingGroup: III 

Specification

 The chemical synonyms of S-seven (CAS NO.3792-59-4) are O-(2,4-Dichlorophenyl) O-ethyl phenylphosphonothioate ; Phosphonothioic acid, P-phenyl-, O-(2,4-dichlorophenyl) O-ethyl ester ; O-2,4-Dichlorfenyl-O-ethylester kyseliny fenylthiofosfonove ; O-Ethyl O-2,4-dichlorophenyl thionobenzenephosphonate and Phosphonothioic acid, phenyl-, O-(2,4-dichlorophenyl) O-ethyl ester .