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Picture of dimethoxy-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane

dimethoxy-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane

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Origin: China

Cas No: 756-80-9

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 756-80-9 Formula: C2H7O2PS2 Molecular Weight: 158.18000

    Description

    Dimethyl dithiophosphoric acid is the organophosphorus compound with the formula (CH3O)2PS2H. It is the processor for production of the organothiophosphate insecticide Malathion. Although samples can appear dark, the compound is a colorless, distillable liquid.
    It is prepared by treating phosphorus pentasulfide with methanol:
    P2S5 + 4 CH3OH → 2 (CH3O)2PS2H + H2S

    Basic Info

    Chemical Name dimethoxy-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane
    Synonyms

    O,O-dimethyl phosphorodithioic acid;
    Dimethylphosphorodithioate;
    dithiophosphoric acid-O.O-dimethyl ester;
    O,O-Dimethyl dithiophosphate;
    Dimethyldithiophosphoric acid;
    dithiophosphorus acid O,O-dimethyl ester;
    O,O-Dimethyldithiophosphate;
    O,O-Dimethyl phosphorodithioate;
    Dimethyl phosphodithionate;
    O,O-Dimethyl hydrogen dithiophosphate;
    Phosphorodithioic acid,O,O-dimethyl ester;
    O,O-dimethyldithiophosphoric acid;

    CAS No. 756-80-9
    Molecular Formula C2H7O2PS2
    Molecular Weight 158.18000
    PSA 99.16000
    LogP 2.08410

    Properties

    Density 1.29
    Boiling Point 65ºC
    Flash Point 71.2ºC
    Refractive Index 1.535

    Synthesis Route

    azanium,dimethoxy-sulfanylidene-sulfido-λ<sup>5</sup>-phosphanedimethoxy-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane
    Methanoldimethoxy-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane
    Methanol+P4S10, triclinicdimethoxy-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane

    Precursor

    iodomethane
    P4S10, triclinic
    thiometon
    azanium,dimethoxy-sulfanylidene-sulfido-λ<sup>5</sup>-phosphane

    Downstream Product

    methidathion
    O,O-dimethyl phenylcarbonothioylphosphoramidothioate
    thiometon
    di(propan-2-yloxy)-sulfanyl-sulfanylidene-λ<sup>5</sup>-phosphane

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