Cas no 22202-65-9 (9-Undecynoic acid)

9-Undecynoic acid is a terminal alkyne carboxylic acid with the molecular formula C??H??O?. This compound is characterized by its reactive alkyne group at the 9-position, making it a valuable intermediate in organic synthesis, particularly for click chemistry applications such as copper-catalyzed azide-alkyne cycloaddition (CuAAC). Its carboxylic acid functionality allows for further derivatization, enabling the formation of esters, amides, or other derivatives. The linear alkyl chain contributes to its moderate hydrophobicity, balancing solubility in organic solvents with limited aqueous miscibility. 9-Undecynoic acid is commonly employed in materials science, bioconjugation, and pharmaceutical research due to its versatility in constructing complex molecular architectures.
9-Undecynoic acid structure
9-Undecynoic acid structure
Product Name:9-Undecynoic acid
CAS No:22202-65-9
MF:C11H18O2
MW:182.259423732758
CID:270533
PubChem ID:24884955
Update Time:2025-06-09

9-Undecynoic acid Chemical and Physical Properties

Names and Identifiers

    • 9-Undecynoic acid
    • 9-Undecins?ure
    • undec-9-ynoic acid
    • 9-Undecins?ure
    • Inchi： 1S/C11H18O2/c1-2-3-4-5-6-7-8-9-10-11(12)13/h4-10H2,1H3,(H,12,13)
    • InChI Key： ZOYDMFOVPQMSPJ-UHFFFAOYSA-N
    • SMILES： OC(CCCCCCCC#CC)=O

Computed Properties

  • Exact Mass: 182.13100

Experimental Properties

  • Density: 0.9898 (rough estimate)
  • Melting Point: 56-60?°C
  • Boiling Point: 341.17°C (rough estimate)
  • Refractive Index: 1.4066 (estimate)
  • PSA: 37.30000
  • LogP: 2.82500

9-Undecynoic acid Security Information

  • Symbol: GHS07
  • Signal Word：Warning
  • Hazard Statement： H315-H319-H335
  • Warning Statement： P261-P305+P351+P338
  • Hazardous Material transportation number：NONH for all modes of transport
  • WGK Germany：3
  • Hazard Category Code： 36/37/38
  • Safety Instruction： S26; S36
  • Hazardous Material Identification： Xi
  • Risk Phrases：R36/37/38

9-Undecynoic acid 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%

9-Undecynoic acid Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
TRC
U789010-100mg
9-Undecynoic Acid
 22202-65-9
100mg
 $196.00 2023-05-17
TRC
U789010-1g
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 $ 1270.00 2022-06-02
A2B Chem LLC
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 $293.00 2024-04-20
A2B Chem LLC
AB70363-25g
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 $512.00 2024-04-20
A2B Chem LLC
AB70363-1g
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 $179.00 2024-01-01
A2B Chem LLC
AB70363-5g
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 $213.00 2024-04-20
SHENG KE LU SI SHENG WU JI SHU
sc-227147-1g
9-Undecynoic acid,
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1g
 ￥346.00 2023-09-05
TRC
U789010-1000mg
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 $1533.00 2023-05-17
Key Organics Ltd
VS-09072-0.5G
undec-9-ynoic acid
 22202-65-9 >90%
0.5g
 ￡426.00 2025-02-09
Key Organics Ltd
VS-09072-1G
undec-9-ynoic acid
 22202-65-9 >90%
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 ￡678.00 2025-02-09

9-Undecynoic acid Production Method

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