Skip to Content
Merck
All Photos(2)

Key Documents

134198

Sigma-Aldrich

5-Methyl-3-phenylisoxazole-4-carboxylic acid

99%

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C11H9NO3
CAS Number:
Molecular Weight:
203.19
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

99%

mp

192-194 °C (lit.)

functional group

carboxylic acid
phenyl

SMILES string

Cc1onc(-c2ccccc2)c1C(O)=O

InChI

1S/C11H9NO3/c1-7-9(11(13)14)10(12-15-7)8-5-3-2-4-6-8/h2-6H,1H3,(H,13,14)

InChI key

PENHKTNQUJMHIR-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

5-Methyl-3-phenylisoxazole-4-carboxylic acid was used in preparation of intermediates for the synthesis of penicillin. It was used for acylation during solid support synthesis of the isoxazolopyridone derivatives.

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

Masayuki Nakamura et al.
Bioorganic & medicinal chemistry letters, 20(2), 726-729 (2009-12-17)
This Letter describes the synthesis and evaluation of mGluR7 antagonists in the isoxazolopyridone series. In the course of modification in this class, novel solid support synthesis of the isoxazolopyridone scaffold was developed. Subsequent chemical modification led to the identification of
1112. Derivatives of 6-aminopenicillanic acid. Part VI. Penicillins from 3-and 5-phenylisoxazole-4-carboxylic acids and their alkyl and halogen derivatives.
Doyle FP, et al.
Journal of the Chemical Society, 5838-5845 (1963)

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