Pyrazole, 98%

Name: Pyrazole, 98%
Brand: Vaqora Chemicals
SKU: VQ-012644

About Pyrazole, 98%

Pyrazole (CAS 288-13-1) is a five-membered N-heterocycle offered by Vaqora Chemicals with a typical assay of 98%. Formula C3H4N2, molecular weight 68.08 g/mol. Systematically, it is named 1H-pyrazole. Alternative names: 1,2-Diazole and Pyrazol.

In its supplied form it is colourless to white to off-white crystals to chunks. Key physical data: a melting point of 67-70 °C. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for coordination chemistry and organic synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Pyrazole in 5 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Coordination chemistry
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Pyrazole, 98%
Catalogue No.	VQ-012644
CAS Number	288-13-1
IUPAC name	1H-pyrazole
Molecular formula	C₃H₄N₂
Molecular weight	68.08 g/mol
Exact mass	68.0374
Purity / assay	98%
HSN code	29333990
InChIKey	WTKZEGDFNFYCGP-UHFFFAOYSA-N
SMILES	C1=CNN=C1
PubChem CID	1048

Physical properties
Physical form	Crystalline
Appearance	Colourless to white to off-white crystals to chunks
Melting point	67-70 °C
LogP (XLogP3)	0.3
H-bond donors / acceptors	1 / 1
TPSA	28.7 Å²
Synonyms	1,2-Diazole, Pyrazol, 1H-pyrazol, 2-Pyrromonazole, Pyrazole-, 3-pyrazole, Pyrazole, 98%, Pyrazole, purum, >=98.0% (GC), Pyrazole Solution in Methanol, 1000ug/mL

Safety & hazard information (GHS)

Corrosive

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H311Toxic in contact with skin
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
H372Causes damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P260, P261, P262, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P337 + P317, P361 + P364, P362 + P364, P403 + P233

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 Pyrazole, 98%?

The CAS Registry Number of Pyrazole, 98% is 288-13-1. It is also known as 1,2-Diazole, Pyrazol, 1H-pyrazol.

What is the molecular formula and molecular weight of Pyrazole, 98%?

Pyrazole, 98% has the molecular formula C3H4N2 and a molecular weight of 68.08 g/mol. Its IUPAC name is 1H-pyrazole.

Which grade and pack sizes of Pyrazole, 98% can I order?

We supply Pyrazole, 98% in (98%) grade, in 5 g, 25 g, 100 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pyrazole, 98%?

Yes. Every lot of Pyrazole, 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 Pyrazole, 98% be shipped internationally?

Yes. Pyrazole, 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.