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dimethyl 2-methylidenepentanedioate

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Origin: China

Cas No: 5621-44-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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  • Products Specification
  • Product Description

  • Property

    CAS No.: 5621-44-3 Formula: C8H12O4 Molecular Weight: 172.17800

    Basic Info

    Chemical Name dimethyl 2-methylidenepentanedioate
    Synonyms

    2-methylenepentanedioic acid dimethyl ester;
    dimethyl 2-methyleneglutarate;
    Dimethyl 2-methylenepentanedioate;
    2-methylene glutaric methyl ester;
    Glutaric acid,2-methylene-,dimethyl ester;
    dimethyl 2-methylideneglutarate;
    2-methylidene-pentanedioic acid dimethyl ester;

    CAS No. 5621-44-3
    Molecular Formula C8H12O4
    Molecular Weight 172.17800
    PSA 52.60000
    LogP 0.66880

    Properties

    Density 1.582g/cm3
    Boiling Point 729.3ºC at 760mmHg
    Flash Point 394.9ºC
    Refractive Index 1.744

    Synthesis Route

    acrylic acid methyl ester→dimethyl 2-methylidenepentanedioate+trimethyl hex-5-ene-1,3,5-tricarboxylate
    acrylic acid methyl ester→HEX-2-ENEDIOIC ACID DIMETHYL ESTER+Δ3-dimethyl dihydromuconate
    acrylic acid methyl ester→dimethyl 2-methylidenepentanedioate

    GC Analysis

    Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
    Capillary OV-101 - 1180. temperature ramp

    Precursor

    cyclopropane-1,1,2-tricarboxylic acid
    acrylic acid methyl ester
    Formaldehyde
    N-(1-methylpyrrolidin-2-ylidene)-1-phenylmethanamine

    Downstream Product

    6-oxopiperidine-3-carboxylic acid
    2-methylidenepentanedioic acid
    dimethyl 2-[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]pentanedioate
    4,4'-Methylenebis(2,6-di-tert-butylphenol)

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