Skip to Content
Merck
All Photos(1)

Key Documents

644676

Sigma-Aldrich

5-Methylisoxazole-3-carboxylic acid

Synonym(s):

3-Carboxy-5-methylisoxazole, 5-Methyl-3-isoxazolecarboxylic acid

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C5H5NO3
CAS Number:
Molecular Weight:
127.10
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

form

solid

mp

106-110 °C (lit.)

functional group

carboxylic acid

SMILES string

Cc1cc(no1)C(O)=O

InChI

1S/C5H5NO3/c1-3-2-4(5(7)8)6-9-3/h2H,1H3,(H,7,8)

InChI key

BNMPIJWVMVNSRD-UHFFFAOYSA-N

Application

Reactant for:
  • Click/aza-Michael or Click/oligomeric alkyl carbodiimide esterification reactions
  • Preparation of aminopyrazole amide derivatives as Raf kinase inhibitors in melanoma cells
  • Preparation of trifluoromethoxyphenyl(thiazolyl)pyrroles and other heterocycle-bearing polyfunctionalized pyrroles via chain heterocyclization

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service