Cas no 32804-66-3 (Methyl But-3-ynoate)

Methyl But-3-ynoate (CAS 1423-61-0) is an ester derivative of but-3-ynoic acid, featuring a terminal alkyne functional group. This compound is primarily utilized as a versatile building block in organic synthesis, particularly in click chemistry and cycloaddition reactions due to its reactive triple bond. Its ester group enhances solubility in organic solvents, facilitating handling in various reaction conditions. Methyl But-3-ynoate is also employed in the preparation of pharmaceuticals, agrochemicals, and specialty materials. The compound’s high purity and stability under controlled conditions make it a reliable intermediate for researchers and industrial applications. Proper storage in cool, dry environments is recommended to maintain its integrity.
Methyl But-3-ynoate structure
Methyl But-3-ynoate structure
Product Name:Methyl But-3-ynoate
CAS No:32804-66-3
MF:C5H6O2
MW:98.0999417304993
MDL:MFCD02262210
CID:293857
PubChem ID:534114
Update Time:2025-10-15

Methyl But-3-ynoate Chemical and Physical Properties

Names and Identifiers

    • Methyl 2-methylbut-3-ynoate
    • Methyl but-3-ynoate
    • 3-Butynoic acid methyl ester
    • METHYL 3-BUTYNOATE
    • 2-propynyl acetate
    • But-3-insaeure-methylester
    • but-3-ynoic acid methyl ester
    • methylpropiolate
    • InChI=1/C5H6O2/c1-3-4-5(6)7-2/h1H,4H2,2H
    • FT-0740895
    • EN300-85299
    • AS-56988
    • JGEGAAGXXWDCOJ-UHFFFAOYSA-N
    • methylbut-3-ynoate
    • AB11822
    • SY037412
    • AKOS006276614
    • Z1198160347
    • 32804-66-3
    • MFCD02262210
    • D81977
    • 3-butynoic acid, methyl ester
    • DTXSID101031306
    • DA-23882
    • Methyl But-3-ynoate
    • MDL： MFCD02262210
    • Inchi： 1S/C5H6O2/c1-3-4-5(6)7-2/h1H,4H2,2H3
    • InChI Key： JGEGAAGXXWDCOJ-UHFFFAOYSA-N
    • SMILES： O(C)C(CC#C)=O

Computed Properties

  • Exact Mass: 104.03700
  • Monoisotopic Mass: 98.036779430g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 7
  • Rotatable Bond Count: 2
  • Complexity: 107
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 0.3
  • Topological Polar Surface Area: 26.3?2

Experimental Properties

  • PSA: 25.78000
  • LogP: 0.45790

Methyl But-3-ynoate Customs Data

  • HS CODE：2916190090
  • Customs Data：

    China Customs Code:

    2916190090

    Overview:

    2916190090 Other unsaturated acyclic monocarboxylic acids(Including its anhydride\Acyl halide,Peroxides and peroxyacids and their derivatives).Regulatory conditions:AB(Customs clearance form for Inbound Goods,Customs clearance form for outbound goods).VAT:17.0%.Tax refund rate:9.0%.MFN tariff:6.5%.general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to, Acrylic acid\Acrylates or esters shall be packaged clearly

    Regulatory conditions:

    A.Customs clearance form for Inbound Goods
    B.Customs clearance form for outbound goods

    Inspection and quarantine category:

    R.Sanitary supervision and inspection of imported food
    S.Sanitary supervision and inspection of exported food
    M.Import commodity inspection
    N.Export commodity inspection

    Summary:

    2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives.supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward).VAT:17.0%.tax rebate rate:9.0%.MFN tariff:6.5%.general tariff:30.0%

Methyl But-3-ynoate Pricemore >>

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Methyl But-3-ynoate Suppliers

Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:32804-66-3)Methyl But-3-ynoate
Order Number:A875512
Stock Status:in Stock
Quantity:5g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 09:46
Price ($):454.0

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Recommended suppliers
Amadis Chemical Company Limited
(CAS:32804-66-3)Methyl But-3-ynoate
A875512
Purity:99%
Quantity:5g
Price ($):454.0
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