1H-Pyrazole-4-carboxylic acid, 98%

About 1H-Pyrazole-4-carboxylic acid, 98%

1H-Pyrazole-4-carboxylic acid is a five-membered N-heterocycle carrying the CAS registry number 5952-93-2 with a typical assay of 98%. With the molecular formula C6H8N2O2, it has a molar mass of 140.14 g/mol. The IUPAC name is methyl 1-methylpyrazole-4-carboxylate. Common synonyms include Methyl 1-methyl-1H-pyrazole-4-carboxylate.

It is supplied as powder or crystals or chunks. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer 1H-Pyrazole-4-carboxylic acid in 250 mg, 1 g and 25 g packs with a batch-specific COA, and ship to customers worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1H-Pyrazole-4-carboxylic acid, 98%
Catalogue No.	VQ-012557
CAS Number	5952-93-2
IUPAC name	methyl 1-methylpyrazole-4-carboxylate
Molecular formula	C₆H₈N₂O₂
Molecular weight	140.14 g/mol
Exact mass	140.0586
Purity / assay	98%
HSN code	29214290
InChIKey	HGQQQXMARFJNCP-UHFFFAOYSA-N
SMILES	CN1C=C(C=N1)C(=O)OC
PubChem CID	10130004

Physical properties
Physical form	Crystalline
Appearance	Powder or crystals or chunks
LogP (XLogP3)	0.1
H-bond donors / acceptors	0 / 3
TPSA	44.1 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 1H-Pyrazole-4-carboxylic acid, 98%?

The CAS Registry Number of 1H-Pyrazole-4-carboxylic acid, 98% is 5952-93-2. It is also known as Methyl 1-methyl-1H-pyrazole-4-carboxylate, 1-methyl-1H-Pyrazole-4-carboxylic acid methyl ester, 1H-Pyrazole-4-carboxylic acid, 1-methyl-, methyl ester.

What is the molecular formula and molecular weight of 1H-Pyrazole-4-carboxylic acid, 98%?

1H-Pyrazole-4-carboxylic acid, 98% has the molecular formula C6H8N2O2 and a molecular weight of 140.14 g/mol. Its IUPAC name is methyl 1-methylpyrazole-4-carboxylate.

Which grade and pack sizes of 1H-Pyrazole-4-carboxylic acid, 98% can I order?

We supply 1H-Pyrazole-4-carboxylic acid, 98% in (98%) grade, in 250 mg, 1 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1H-Pyrazole-4-carboxylic acid, 98%?

Yes. Every lot of 1H-Pyrazole-4-carboxylic acid, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 1H-Pyrazole-4-carboxylic acid, 98% be shipped internationally?

Yes. 1H-Pyrazole-4-carboxylic acid, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.