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Basic Information
CAS No.: 78-20-6
Name: 2,2-dibutyl-1,3,2-oxathiastannolan-5-one
Article Data: 5
Molecular Structure:
Molecular Structure of 78-20-6 (2,2-dibutyl-1,3,2-oxathiastannolan-5-one)
Formula: C10H20 O2 S Sn
Molecular Weight: 323.044
Synonyms: 2,2-Dibutyl-1-oxo-2-stanno-3-thio-5-cyclopentanone;Dibutyltin O,S-mercaptoacetate; Dibutyltin S,O-thioglycolate; Dibutyltinmercaptoacetate; Dibutyltin thioglycolate; NSC 179732; NSC 67015
Boiling Point: 295.114°C at 760 mmHg
Flash Point: 132.28°C
Safety: Moderately toxic by ingestion. See also TIN COMPOUNDS. When heated to decomposition it emits toxic fumes of SOx.

Analytical Methods:

   

For occupational chemical analysis use NIOSH: Organotin Compounds 5504.

PSA: 51.60000
LogP: 3.31880
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Chemistry

Empirical Formula of 2,2-dibutyl-1,3,2-oxathiastannolan-5-one (CAS NO.78-20-6): C10H20O2SSn
Molecular Weight of 2,2-dibutyl-1,3,2-oxathiastannolan-5-one (CAS NO.78-20-6): 323.0396 g/mol
EINECS: 201-093-2 
Flash Point: 132.3 °C
Enthalpy of Vaporization: 53.48 kJ/mol
Boiling Point: 295.1 °C at 760 mmHg
Vapour Pressure: 0.00156 mmHg at 25 °C
Structure of 2,2-dibutyl-1,3,2-oxathiastannolan-5-one (CAS NO.78-20-6):
            
IUPAC Name: 2,2-Dibutyl-1,3,2-oxathiastannolan-5-one

Toxicity Data With Reference

1.    

orl-rat LD50:510 mg/kg

     TRIPA7    Tin Research Institute, Publication .(The Institute,Middlesex, England.: )1973,1.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Moderately toxic by ingestion. See also TIN COMPOUNDS. When heated to decomposition it emits toxic fumes of SOx.

Standards and Recommendations

OSHA PEL: TWA 0.1 mg(Sn)/m3 (skin)
ACGIH TLV: TWA 0.1 mg(Sn)/m3; STEL 0.2 mg(Sn)/m3 (skin).
NIOSH REL: (Organotin Compounds) TWA 0.1 mg(Sn)/m3

Analytical Methods

For occupational chemical analysis use NIOSH: Organotin Compounds 5504.

Specification

 2,2-dibutyl-1,3,2-oxathiastannolan-5-one ,its cas register number is 78-20-6. It also can be called 1,3,2-Oxathiastannolan-5-one, 2,2-dibutyl- ; Tin, dibutyl((carboxymethyl)thio)hydroxy-, inner salt ;and 1,3,2-Oxathiastannolane, 2,2-dibutyl-, 5-oxide .