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Basic Information
CAS No.: 7506-77-6
Name: 1,1-diethoxy-3,3-diethyldiphosphoxane 3-oxide 1-sulfide
Molecular Structure:
Molecular Structure of 7506-77-6 (1,1-diethoxy-3,3-diethyldiphosphoxane 3-oxide 1-sulfide)
Formula: C8H20O4P2S
Molecular Weight: 274.28
Density: 1.162g/cm3
Boiling Point: 300.7°C at 760 mmHg
Flash Point: 135.6°C
Hazard Symbols: Moderately toxic.
Safety: Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of POx and SOx.
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Chemistry

IUPAC  Name: Diethylphosphoryloxy-diethoxy-sulfanylidene-l-5-phosphane    
Molecular Formula: C8H20O4P2S
Molecular Weight: 274.28
Freely Rotating Bonds: 8
Polar Surface Area: 96.47 Å2
Index of Refraction: 1.466
Molar Refractivity: 65.35 cm3
Molar Volume: 235.8 cm3
Polarizability: 25.9 ×10-24 cm3
Surface Tension: 40.5 dyne/cm
Density: 1.162 g/cm3
Flash Point: 135.6 °C
Enthalpy of Vaporization: 51.91 kJ/mol
Boiling Point: 300.7 °C at 760 mmHg
Vapour Pressure: 0.00197 mmHg at 25°C 
The Cas Register Number of  Diethylphosphinic acid anhydride with diethyl phosphorothionate is 7506-77-6.The chemical synonyms of  Diethylphosphinic acid anhydride with diethyl phosphorothionate (CAS NO.7506-77-6) are  Phosphinic acid, diethyl-, anhydride with diethyl phosphorothionate  and  Phosphorothioic acid, monoanhydride with diethylphosphonic acid,
diethyl ester .The molecular structure of  Diethylphosphinic acid anhydride with diethyl phosphorothionate (CAS NO.7506-77-6) is.

Uses

 Diethylphosphinic acid anhydride with diethyl phosphorothionate (CAS NO.7506-77-6) is used in organic synthesis .

Toxicity Data With Reference

1.    

ipr-mus LDLo:500 mg/kg

     CBCCT*    “Summary Tables of Biological Tests“ National Research Council Chemical-Biological Coordination Center. 9 (1957),131.

Safety Profile

Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of POx and SOx.