Cas no 134541-03-0 (5-ethyl-1,2-oxazole-4-carboxylic acid)

5-ethyl-1,2-oxazole-4-carboxylic acid structure
134541-03-0 structure
Product Name:5-ethyl-1,2-oxazole-4-carboxylic acid
CAS No:134541-03-0
MF:C6H7NO3
MW:141.124681711197
MDL:MFCD07357474
CID:900213
PubChem ID:14787247
Update Time:2025-04-19

5-ethyl-1,2-oxazole-4-carboxylic acid Chemical and Physical Properties

Names and Identifiers

    • 5-Ethylisoxazole-4-carboxylic acid
    • 5-ethyl-1,2-oxazole-4-carboxylic acid
    • 5-ethyl-isoxazole-4-carboxylic acid
    • 4-Isoxazolecarboxylic acid,5-ethyl
    • CS-0120444
    • 5-Ethylisoxazole-4-carboxylicacid
    • 5-ethyl-4-isoxazolecarboxylic acid
    • MFCD07357474
    • DTXSID90564025
    • EN300-202739
    • 134541-03-0
    • 5-Ethyl-4-isoxazolecarboxylicacid
    • AS-62297
    • SCHEMBL4145759
    • DB-207100
    • 5-ethyl-isoxazole-4-carboxylic acid, AldrichCPR
    • 4-Isoxazolecarboxylic acid, 5-ethyl-
    • Z406694030
    • AKOS009423790
    • MDL： MFCD07357474
    • Inchi： 1S/C6H7NO3/c1-2-5-4(6(8)9)3-7-10-5/h3H,2H2,1H3,(H,8,9)
    • InChI Key： YGUUMRJFLRVBOD-UHFFFAOYSA-N
    • SMILES： O1C(=C(C(=O)O)C=N1)CC

Computed Properties

  • Exact Mass: 141.04300
  • Monoisotopic Mass: 141.042593085g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 10
  • Rotatable Bond Count: 2
  • Complexity: 137
  • 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: 0.7
  • Topological Polar Surface Area: 63.3?2

Experimental Properties

  • PSA: 63.33000
  • LogP: 0.93520

5-ethyl-1,2-oxazole-4-carboxylic acid Customs Data

  • HS CODE：2934999090
  • Customs Data：

    China Customs Code:

    2934999090

    Overview:

    2934999090. Other heterocyclic compounds. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

5-ethyl-1,2-oxazole-4-carboxylic acid Pricemore >>

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abcr
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