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thiomalic acid

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Origin: China

Cas No: 70-49-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

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  • Products Specification
  • Product Description

  • Property

    CAS No.: 70-49-5 Formula: C4H6O4S Molecular Weight: 150.15300

    Description

    A thiomalic acid or mercaptosuccinic acid is a dicarboxylic acid containing a thiol functional group. As suggested by its name, it contains an SH group instead of an OH group on malic acid. Salts and esters are known as thiomalates.
    Thiomalic acid forms the backbone of the pesticide malathion.

    Basic Info

    Chemical Name thiomalic acid
    Synonyms

    2-sulfanylbutanedioic acid;
    Mercaptosuccinic acid;

    CAS No. 70-49-5
    Molecular Formula C4H6O4S
    Molecular Weight 150.15300
    PSA 113.40000
    LogP -0.15590

    Properties

    Appearance & Physical State white crystalline powder
    Density 1.528 g/cm3
    Boiling Point 256.3ºC at 760 mmHg
    Melting Point 152-155ºC
    Flash Point 108.8ºC
    Refractive Index 1.555
    Water Solubility 150 g/L (20 ºC)

    Safety Info

    RTECS WM8225000
    Hazard Class 8
    Safety Statements S26-S36/37/39
    HS Code 2930909090
    Packing Group III
    WGK Germany 3
    RIDADR 1759
    Risk Statements R22; R36/37/38
    Hazard Codes Xn
    Caution Statement P261; P305 + P351 + P338
    Hazard Declaration H302; H315; H319; H335
    Symbol GHS07
    Signal Word Warning

    Synthesis Route

    fumaric acid→thiomalic acid
    maleic acid→thiomalic acid
    BROMOSUCCINIC ACID→thiomalic acid

    Precursor

    ethoxythiocarbonylmercapto-succinic acid
    BROMOSUCCINIC ACID
    ethylcarbamoylsulfanyl-succinic acid
    maleic acid

    Downstream Product

    diethyl 2-sulfanylbutanedioate
    mercaptoethanol
    Thiodisuccinic Acid
    S-nitroso-beta-mercaptosuccinic acid

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