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Safety Information

300713

Sigma-Aldrich

4-Pyrazolecarboxylic acid

95%

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About This Item

Empirical Formula (Hill Notation):
C4H4N2O2
CAS Number:
37718-11-9
Molecular Weight:
112.09
EC Number:
253-641-5
MDL number:
MFCD00011558
UNSPSC Code:
12352100
PubChem Substance ID:
24857935
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
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

300713-500MG:
300713-VAR:
300713-100MG:
300713-BULK:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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