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Dimethyl chlorothiophosphate

Product Name
Dimethyl chlorothiophosphate
CAS No.
2524-03-0
Chemical Name
Dimethyl chlorothiophosphate
Synonyms
MCT;DMPCT;NA 2267;U.N. 2267;METHYL PCT;(CH3O)2P(S)Cl;AURORA KA-1651;Dimethylthiophosphoryl;Dimethylchlorthiofosfat;METHYL INTERMEDIARY MP-2
CBNumber
CB0150185
Molecular Formula
C2H6ClO2PS
Formula Weight
160.56
MOL File
2524-03-0.mol
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Dimethyl chlorothiophosphate Property

Boiling point:
66-67 °C16 mm Hg(lit.)
Density 
1.322 g/mL at 25 °C(lit.)
vapor pressure 
0.67 psi ( 20 °C)
refractive index 
n20/D 1.482(lit.)
Flash point:
221 °F
Water Solubility 
slowly hydrolyzes
CAS DataBase Reference
2524-03-0(CAS DataBase Reference)
NIST Chemistry Reference
Phosphorochloridothioic acid, o,o-dimethyl ester(2524-03-0)
EPA Substance Registry System
Phosphorochloridothioic acid, O,O-dimethyl ester(2524-03-0)
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Safety

Hazard Codes 
T
Risk Statements 
23/24/25-34-23-21/22
Safety Statements 
23-26-36/37/39-45-24/25
RIDADR 
UN 2267 6.1/PG 2
WGK Germany 
3
RTECS 
TD1830000
HazardClass 
6.1(a)
PackingGroup 
II
HS Code 
29309099
Hazardous Substances Data
2524-03-0(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

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Dimethyl chlorothiophosphate Chemical Properties,Usage,Production

Chemical Properties

clear colorless to light yellow liquid

General Description

Colorless to light amber liquid. Used as a chemical intermediate for insecticides, pesticides, and fungicides; oil and gasoline additives; plasticizers; corrosion inhibitors; flame retardants; and flotation agents. Not registered as a pesticide in the U.S.

Reactivity Profile

Organothiophosphates, such as Dimethyl chlorothiophosphate, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Health Hazard

Dimethyl chlorothiophosphate is a strong irritant to the eyes, skin, and mucous membranes.

Fire Hazard

Dimethyl chlorothiophosphate may burn but does not ignite readily. Dimethyl chlorothiophosphate may ignite combustibles (wood, paper, oil, etc.). When heated Dimethyl chlorothiophosphate emits very toxic fumes of chlorine containing compounds, phosphorus oxides, and sulfur oxides.

Safety Profile

Poison by inhalation. Moderately toxic by ingestion and skin contact. Corrosive. When heated to decomposition it emits very toxic fumes of Cl-, POx, and SOx

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Dimethyl chlorothiophosphate Suppliers

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