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329-21-5

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Basic Information
CAS No.: 329-21-5
Name: Ethyldithiophosphonic acid=S-[4-(1,1-dimethylethyl)phenyl]O-ethyl ester
Molecular Structure:
Molecular Structure of 329-21-5 (Ethyldithiophosphonic acid=S-[4-(1,1-dimethylethyl)phenyl]O-ethyl ester)
Formula: C14H23OPS2
Molecular Weight: 302.46
Density: 1.09g/cm3
Boiling Point: 374.5°C at 760 mmHg
Flash Point: 180.3°C
Safety: Poison by ingestion. When heated to decomposition it emits very toxic fumes of SOx and POx. See also ESTERS.
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Chemistry

IUPAC Name: (4-tert-Butylphenyl)sulfanyl-ethoxy-ethyl-thioxo-phosphorane
Synonyms: Phosphonodithioic acid, ethyl-, S-(4-(1,1-dimethylethyl)phenyl) O-ethyl ester ; Phosphonodithioic acid, ethyl-, S-(p-tert-butylphenyl) O-ethyl ester ; S-(4-(1,1-Dimethylethyl)phenyl) O-ethyl ethylphosphonodithioate ; S-p-tert-Butylphenyl O-ethyl ethylphosphonodithioate
CAS NO: 329-21-5
Molecular Formula of S-p-tert-Butylphenyl-o-ethyl ethyl phosphonodithioate (CAS NO.329-21-5) : C14H23OPS2
Molecular Weight of S-p-tert-Butylphenyl-o-ethyl ethyl phosphonodithioate (CAS NO.329-21-5) : 302.4356
Molecular Structure of S-p-tert-Butylphenyl-o-ethyl ethyl phosphonodithioate (CAS NO.329-21-5) :
Index of Refraction: 1.546
Surface Tension: 42.6 dyne/cm
Density: 1.09 g/cm3
Flash Point: 180.3 °C
Enthalpy of Vaporization: 59.75 kJ/mol
Boiling Point: 374.5 °C at 760 mmHg
Vapour Pressure: 1.79E-05 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral 64400ug/kg (64.4mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Toxicology and Applied Pharmacology. Vol. 7, Pg. 606, 1965.
rat LD50 oral 141mg/kg (141mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 22, 1966

Safety Profile

Poison by ingestion. When heated to decomposition it emits very toxic fumes of SOx and POx. See also ESTERS.