Skip to Content
Merck
CN

Key Documents

View All Documentation

644676

5-Methylisoxazole-3-carboxylic acid

Synonym(s):

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

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C5H5NO3
CAS Number:
3405-77-4
Molecular Weight:
127.10
NACRES:
NA.22
PubChem Substance ID:
24883349
UNSPSC Code:
12352100
EC Number:
222-289-4
MDL number:
MFCD01318162
Form:
solid
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

form

solid

Quality Segment

100

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

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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.

Search for a COA

Already Own This Product?

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

Visit the Document Library