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Sigma-Aldrich

4-Pyrazolecarboxylic acid

95%

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Empirical Formula (Hill Notation):
C4H4N2O2
CAS Number:
Molecular Weight:
112.09
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

95%

mp

282 °C (dec.) (lit.)

SMILES string

OC(=O)c1cn[nH]c1

InChI

1S/C4H4N2O2/c7-4(8)3-1-5-6-2-3/h1-2H,(H,5,6)(H,7,8)

InChI key

IMBBXSASDSZJSX-UHFFFAOYSA-N

Application

4-Pyrazolecarboxylic acid was used in preparation of ethyl 4-pyrazolecarboxylate.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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