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Thieno[3,2-b]thiophene

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Origin: China

Cas No: 251-41-2

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

  • Quick Details

    CAS No.:
    251-41-2
    Other Names:
    Thieno[3,2-b]thiophene
    MF:
    C6H4S2
    Place of Origin:
    Zhejiang, China
    Type:
    OLED intermediates
    Purity:
    98.0%min
    Brand Name:
    UIV CHEM
    Application:
    OLED intermediate
    Appearance:
    white powder
    Other Names::
    Thieno[3,2-b]thiophene
    Place of Origin::
    Zhejiang, China
    Brand Name::
    UIV CHEM
    Name::
    Thieno[3,2-b]thiophene
    Appearance::
    withe powder
    MF::
    C6H4S2
    CAS No.::
    251-41-2
    Application::
    OLED intermediate
    stock::
    1-10kgs in stock

    Packaging&Delivery

    Packaging Details
    Manufacture Sale Good Price 251-41-2 for Thieno[3,2-b]thiophene
    10/100/500/1000g
    Purity: 98.0% min
    Port
    Shanghai
    Lead Time:
    Quantity(Grams)1 - 1000010001 - 100000>100000
    Est. Time(days)37To be negotiated

    Products Description

    Name
    Manufacture Sale Good Price 251-41-2 for Thieno[3,2-b]thiophene
    Synonyms
    Thieno[3,2-b]thiophene
    Molecular Formula
    C6H4S2
    CAS Registry Number
    251-41-2
    Purity:
    98.0%min
    Appearance
    white powder

  • Property

    CAS No.: 251-41-2 Formula: C6H4S2 Molecular Weight: 140.22600

    Description

    Thieno[3,2-b]thiophene is used to make polymers which act as semiconductors.

    Basic Info

    Chemical Name Thieno[3,2-b]thiophene
    Synonyms

    1,4-DITHIAPENTALENE;
    4-Dithiapentalene 1,4-Thiophthene;
    1,4-Dithiapentalene,1,4-Thiophthene;
    1,4-Dithiapentalene1,4-Thiophthene;
    1,4-THIOPHTHENE;
    thienothiophene;

    CAS No. 251-41-2
    Molecular Formula C6H4S2
    Molecular Weight 140.22600
    PSA 56.48000
    LogP 2.96280

    Properties

    Density 1.367 g/cm3
    Boiling Point 223.4ºC at 760 mmHg
    Melting Point 56ºC
    Flash Point 63.1ºC
    Refractive Index 1.728
    Vapor Pressure 0.144mmHg at 25°C

    Safety Info

    HS Code 2934999090
    Symbol GHS07
    Signal Word Warning
    Caution Statement P261; P305 + P351 + P338
    Hazard Declaration H302; H315; H319; H335

    Synthesis Route

    (ethyltrisulfanyl)ethane+acetylene→Thiophene(SIV)+THIENO[2,3-B]THIOPHENE
    2-Chlorothiophene+Ethanethiol→2-Thiophenethiol+THIENO[2,3-B]THIOPHENE
    2-ethylsulfanylthiophene+THIENO[2,3-B]THIOPHENE→Thiophene(SIV)+2-Thiophenethiol

    GC Analysis

    Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
    Capillary BP-5 - 1213. temperature ramp
    Capillary DB-1 - 1185. temperature ramp
    Capillary DB-5 - 1214. custom temperature program
    Capillary CP-WAX 57CB - 1872. temperature ramp
    Capillary CP-WAX 57CB - 1876. temperature ramp

    Precursor

    ethyl thieno[3,2-b]thiophene-5-carboxylate
    3-(t-butylsulfanyl)-2-ethynylthiophene
    3-Bromothiophene-2-carbaldehyde
    thieno[3,2-b]thiophene-5-carboxylic acid

    Downstream Product

    methyl thieno[3,2-b]thiophene-5-carboxylate
    2,5,6-tribromothieno[3,2-b]thiophene
    3,6-Dibromothieno[3,2-b]thiophene
    thieno[3,2-b]thiophene-5-carbaldehyde

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