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but-1-yne

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Origin: China

Cas No: 107-00-6

Specification: 99%min

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  • Products Specification
  • Product Description

  • Property

    CAS No.: 107-00-6 Formula: C4H6 Molecular Weight: 54.09040

    Description

    1-Butyne, also known as ethylacetylene, but-1-yne, ethylethyne, and UN 2452, is an extremely flammable and reactive alkyne with chemical formula C4H6 and CAS number 107-00-6 that is used in the synthesis of organic compounds. It occurs as a colorless gas.

    Basic Info

    Chemical Name but-1-yne
    Synonyms

    Ethylacetylene,inhibited;
    Butyne-1;
    ETHYL ACETYLENE;
    but-1-en-1,2-diyl;
    1-Butyne;
    ethylacetylene;
    EINECS 203-451-3;
    UN2452;

    CAS No. 107-00-6
    Molecular Formula C4H6
    Molecular Weight 54.09040
    PSA 0.00000
    LogP 1.02960

    Properties

    Density 0.69g/cm3
    Boiling Point 7.8ºC at 760mmHg
    Melting Point -126ºC
    Refractive Index 1.386
    Vapor Pressure 1390mmHg at 25°C

    Safety Info

    Hazard Class 2.1
    Safety Statements S9; S16; S23; S33
    HS Code 2901299090
    WGK Germany 3
    RIDADR UN 2452 2.1
    Risk Statements R11
    Hazard Codes F

    Synthesis Route

    2,3-Dibromobutane→but-1-yne+but-2-yne
    Methanol+Calcium carbide→but-1-yne+but-2-yne
    but-1-ene+but-2-ene→but-1-yne+but-2-yne

    Precursor

    monosodium acetylide
    1,2-Dibromobutane
    (Ethylcarbonylmethylene)triphenylphosphorane
    Diethyl sulfate

    Downstream Product

    pent-2-ynoic acid
    but-1-en-2-yl acetate
    2'-HYDROXY-3,4,4'-TRIMETHOXYCHALCONE
    1,2-Dibromobutane

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