Cas no 16401-14-2 (1,2-oxazole-5-carbaldehyde)

1,2-Oxazole-5-carbaldehyde is a heterocyclic aldehyde featuring a five-membered oxazole ring with a formyl group at the 5-position. This compound serves as a versatile intermediate in organic synthesis, particularly in the preparation of pharmaceuticals, agrochemicals, and functional materials. Its reactive aldehyde group enables facile derivatization through condensation, nucleophilic addition, or cyclization reactions, offering access to diverse heterocyclic scaffolds. The oxazole core contributes to enhanced stability and electronic properties, making it valuable in medicinal chemistry for drug discovery. High purity grades are available to ensure reproducibility in research and industrial applications. Proper handling under inert conditions is recommended due to its sensitivity to air and moisture.
1,2-oxazole-5-carbaldehyde structure
1,2-oxazole-5-carbaldehyde structure
Product Name:1,2-oxazole-5-carbaldehyde
CAS No:16401-14-2
MF:C4H3NO2
MW:97.0721209049225
MDL:MFCD07778412
CID:121640
PubChem ID:21817604
Update Time:2025-05-28

1,2-oxazole-5-carbaldehyde Chemical and Physical Properties

Names and Identifiers

    • 5-Isoxazolecarboxaldehyde
    • 1,2-oxazole-5-carbaldehyde
    • 5-FORMYLISOXAZOLE
    • ISOXAZOLE-5-CARBOXALDEHYDE
    • 5-Formylisoxazol
    • 5-Isoxazol-aldehyd
    • Isoxazole-5-carbaldehyde
    • 5-formylisoxazole, AldrichCPR
    • GSIPOZWLYGLXDM-UHFFFAOYSA-N
    • C73163
    • MFCD07778412
    • FT-0690839
    • DTXSID10618397
    • A927903
    • SB34114
    • AKOS016000217
    • 5-Isoxazolecarbaldehyde
    • EN300-83934
    • AMY41963
    • CS-0342261
    • 16401-14-2
    • 5-(1-METHYL-CYCLOPROPYL)-7-TRIFLUOROMETHYL-PYRAZOLO[1,5-A]PYRIMIDINE-2-CARBOXYLICACID
    • STL553797
    • DB-003702
    • BBL100225
    • MDL： MFCD07778412
    • Inchi： 1S/C4H3NO2/c6-3-4-1-2-5-7-4/h1-3H
    • InChI Key： GSIPOZWLYGLXDM-UHFFFAOYSA-N
    • SMILES： O1C(C=O)=CC=N1

Computed Properties

  • Exact Mass: 97.01640
  • Monoisotopic Mass: 97.016378338g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 1
  • Heavy Atom Count: 7
  • Rotatable Bond Count: 1
  • Complexity: 74.1
  • 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: 0.2
  • Topological Polar Surface Area: 43.1?2

Experimental Properties

  • Density: 1.258
  • Boiling Point: 212 oC
  • Flash Point: 82 oC
  • Refractive Index: 1.519
  • PSA: 43.10000
  • LogP: 0.48710

1,2-oxazole-5-carbaldehyde Security Information

  • Signal Word：Warning
  • Hazard Statement： H302
  • Warning Statement： P280-P305+P351+P338
  • Hazard Category Code： 43
  • Safety Instruction： 36/37
  • Storage Condition：Inert atmosphere,2-8°C(BD104133)

1,2-oxazole-5-carbaldehyde 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%

1,2-oxazole-5-carbaldehyde Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
JIE DA WEI （ SHANG HAI ） YI YAO KE JI FA ZHAN Co., Ltd.
56R0625-1g
Isoxazole-5-carbaldehyde
 16401-14-2 96%
1g
 5919.34CNY 2021-07-19
JIE DA WEI （ SHANG HAI ） YI YAO KE JI FA ZHAN Co., Ltd.
56R0625-5g
Isoxazole-5-carbaldehyde
 16401-14-2 96%
5g
 23490.77CNY 2021-07-19
JIE DA WEI （ SHANG HAI ） YI YAO KE JI FA ZHAN Co., Ltd.
56R0625-500mg
Isoxazole-5-carbaldehyde
 16401-14-2 96%
500mg
 3383.69CNY 2021-07-19
JIE DA WEI （ SHANG HAI ） YI YAO KE JI FA ZHAN Co., Ltd.
56R0625-250mg
Isoxazole-5-carbaldehyde
 16401-14-2 96%
250mg
 2111.63CNY 2021-07-19
JIE DA WEI （ SHANG HAI ） YI YAO KE JI FA ZHAN Co., Ltd.
56R0625-100mg
Isoxazole-5-carbaldehyde
 16401-14-2 96%
100mg
 1484.07CNY 2021-07-19
JIE DA WEI （ SHANG HAI ） YI YAO KE JI FA ZHAN Co., Ltd.
56R0625-50mg
Isoxazole-5-carbaldehyde
 16401-14-2 96%
50mg
 1161.82CNY 2021-07-19
Chemenu
CM191222-1g
isoxazole-5-carbaldehyde
 16401-14-2 95%
1g
 $701 2021-08-05
Chemenu
CM191222-5g
isoxazole-5-carbaldehyde
 16401-14-2 95%
5g
 $2319 2021-08-05
TRC
I918105-0.050g
5-Isoxazolecarbaldehyde
 16401-14-2
0.050g
 $ 190.00 2022-06-04
TRC
I918105-0.1g
5-Isoxazolecarbaldehyde
 16401-14-2
0.1g
 $ 325.00 2022-06-04

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