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Picture of 3,4-Dimethylthiophene

3,4-Dimethylthiophene

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Origin: China

Cas No: 632-15-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

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

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 632-15-5 Formula: C6H8S Molecular Weight: 112.19300

    Basic Info

    Chemical Name 3,4-Dimethylthiophene
    Synonyms

    Thiophene, 3,4-dimethyl-;
    DiMethylthiophene (Me2Thio);
    3,4-dimethyl-thiophene;

    CAS No. 632-15-5
    Molecular Formula C6H8S
    Molecular Weight 112.19300
    PSA 28.24000
    LogP 2.36490

    Properties

    Density 1.006 g/cm3
    Boiling Point 146.5ºC at 760 mmHg
    Melting Point 50-54ºC
    Flash Point 26.7ºC
    Refractive Index 1.527

    Safety Info

    Safety Statements S26; S36/37
    HS Code 2934999090
    Risk Statements R22; R36; R43
    Hazard Codes Xn

    Synthesis Route

    Spiro[thioxanthen-9',2-(3,6-dihydro-4,5-dimethyl-2H-thiopyran)]3,4-Dimethylthiophene+9H-thioxanthene
    Spiro[thioxanthen-9',2-(3,6-dihydro-4,5-dimethyl-2H-thiopyran)]3,4-Dimethylthiophene+9H-thioxanthene
    Spiro[xanthen-9',2-(3,6-dihydro-4,5-dimethyl-2H-thiopyran)]3,4-Dimethylthiophene+9H-xanthene

    GC Analysis

    Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
    Capillary BPX-5 - 890. temperature ramp
    Capillary BP-5 - 887. temperature ramp
    Capillary Ultra-1 - 883.5 temperature ramp
    Capillary HP-1 - 885. temperature ramp
    Capillary HP-1 - 898. temperature ramp

    Precursor

    3,4-Dimethyl-2,5-thiophenedicarboxylic acid
    3,4-Dimethyl-2-(p-tolylsulfonyl)thiophene
    3,4-Dibromothiophene
    Methylmagnesium iodide

    Downstream Product

    2,3,5-TRIMETHYLTHIOPHENE
    2,4-Dimethylthiophene
    2-Methylthiophene
    3,4-Dimethylthiophene-2-carboxylic acid

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