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Butanedioic acid,2-[(dimethoxyphosphinyl)thio]-, 1,4-diethyl ester (1634-78-2)

Identification
Name:Butanedioic acid,2-[(dimethoxyphosphinyl)thio]-, 1,4-diethyl ester
Synonyms:Butanedioicacid, [(dimethoxyphosphinyl)thio]-, diethyl ester (9CI); Succinic acid, mercapto-,diethyl ester, S-ester with O,O-dimethyl phosphorothioate (7CI,8CI); Succinicacid, mercapto-, diethyl ester, dimethyl phosphate (6CI); Phosphorothioic acid,O,O-dimethyl ester, S-ester with diethyl mercaptosuccinate (6CI); DL-Malaoxon;Diethyl [(dimethoxyphosphino)thio]butanedioate; Diethyl mercaptosuccinateS-ester with O,O-dimethyl phosphorothioate; Liromat; Malaoxon; Malaoxone;Malathion oxon; Malathion-O-analog; Maloxon; O,O-DimethylS-1,2-bis(ethoxycarbonyl)ethyl phosphorothioate; Oxycarbophos
CAS:1634-78-2
EINECS: 204-497-7
Molecular Formula: C10H19 O7 P S
Molecular Weight: 314.32
InChI: InChI=1/C10H19O6PS2.C8H14O4S/c1-5-15-9(11)7-8(10(12)16-6-2)19-17(18,13-3)14-4;1-3-11-7(9)5-6(13)8(10)12-4-2/h8H,5-7H2,1-4H3;6,13H,3-5H2,1-2H3
Molecular Structure: (C10H19O7PS) Butanedioicacid, [(dimethoxyphosphinyl)thio]-, diethyl ester (9CI); Succinic acid, mercapto-,diethyl...
Properties
Transport:3018
Flash Point: -18 °C
Specification:

1.Air & Water Reactions: Malaoxon may be sensitive to prolonged exposure to air.
2.Reactivity Profile: A thioorganophosphate, ester. Organophosphates 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. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.
3.Fire Hazard : Malaoxon is probably combustible.

Report:

NCI Carcinogenesis Bioassay (feed); No Evidence: mouse, rat NCITR*    National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-135 ,1979.

Packinggroup: III
Flash Point: -18 °C
Storage Temperature: 0-6°C
Usage:

 Oxycarbophos (CAS NO.1634-78-2 is an active metabolite of Malathion. It is a widely used anticholinesterase phosphorothioate insecticide.

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