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328-04-1

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Basic Information
CAS No.: 328-04-1
Name: Ethylthiophosphonic acid O-isopropyl O-(2-chloro-4-nitrophenyl) ester
Molecular Structure:
Molecular Structure of 328-04-1 (Ethylthiophosphonic acid O-isopropyl O-(2-chloro-4-nitrophenyl) ester)
Formula: C11H15 Cl N O4 P S
Molecular Weight: 323.737
Synonyms: Phosphonothioicacid, ethyl-, O-(2-chloro-4-nitrophenyl) O-isopropyl ester (7CI,8CI); ENT25755; N 2404; O-Isopropyl O-(2-chloro-4-nitrophenyl) ethylphosphonothioate;OMS 405; Stauffer N 2404
Density: 1.337g/cm3
Boiling Point: 389.9°C at 760 mmHg
Flash Point: 189.6°C
Safety: Poison by ingestion. When heated to decomposition it emits toxic fumes of Cl, NOx, POx, and SOx.
PSA: 106.18000
LogP: 5.55520
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Chemistry

Chemistry informtion about O-(2-Chloro-4-Nitrophenyl)-O-Isopropyl Ethylphosphonothioate (CAS NO.328-04-1) is:
IUPAC Name: (2-Chloro-4-Nitrophenoxy)-Ethyl-Propan-2-Yloxy-Sulfanylidene-$L^{5}-Phosphane
Synonyms: Ethylthiophosphonic Acid O-Isopropyl O-(2-Chloro-4-Nitrophenyl) ; Ethylthiophosphonic Acid O-Isopropyl O-(2-Chloro-4-Nitrophenyl) Ester ; N-2404
MF: C11H15ClNO4PS
MW: 323.732861 g/mol 
Density: 1.337 g/cm3
Flash Point: 189.6 °C
Boiling Point: 389.9 °C at 760 mmHg
Vapour Pressure: 6.19E-06 mmHg at 25°C
Enthalpy of Vaporization: 61.43 kJ/mol
Following is the molecular structure of  O-(2-Chloro-4-Nitrophenyl)-O-Isopropyl Ethylphosphonothioate (CAS NO.328-04-1) is:

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral 4010ug/kg (4.01mg/kg) behavioral: convulsions or effect on seizure threshold Toxicology and Applied Pharmacology. Vol. 7, Pg. 606, 1965.
mouse LDLo oral 62mg/kg (62mg/kg)   Archives of Environmental Contamination and Toxicology. Vol. 14, Pg. 111, 1985.
rat LD50 oral 32mg/kg (32mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 22, 1966.

Safety Profile

Poison by ingestion. When heated to decomposition it emits toxic fumes of Cl, NOx, POx, and SOx.