4-Fluoro-1H-pyrazole, 95%

About 4-Fluoro-1H-pyrazole, 95%

4-Fluoro-1H-pyrazole is a five-membered N-heterocycle carrying the CAS registry number 35277-02-2 with a typical assay of 95%. Formula C3H3FN2, molecular weight 86.07 g/mol. Common synonyms include 4-Fluoropyrazole and C3H3FN2.

It is supplied as a solid. Key physical data: a melting point of 38-40 °C and a boiling point of 193 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 4 hazard statements. Review the Safety Data Sheet before use.

Key uses span catalysis and organic synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 100 mg, 250 mg, 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Catalysis
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	4-Fluoro-1H-pyrazole, 95%
Catalogue No.	VQ-012573
CAS Number	35277-02-2
IUPAC name	4-fluoro-1H-pyrazole
Molecular formula	C₃H₃FN₂
Molecular weight	86.07 g/mol
Exact mass	86.028
Purity / assay	95%
HSN code	29335990
InChIKey	RYXJXPHWRBWEEB-UHFFFAOYSA-N
SMILES	C1=C(C=NN1)F
PubChem CID	141992

Physical properties
Physical form	Solid
Melting point	38-40 °C
Boiling point	193 °C
Density	1.320
LogP (XLogP3)	-0.3
H-bond donors / acceptors	1 / 2
TPSA	28.7 Å²

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P330, P332 + 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 4-Fluoro-1H-pyrazole, 95%?

The CAS Registry Number of 4-Fluoro-1H-pyrazole, 95% is 35277-02-2. It is also known as 4-Fluoropyrazole, C3H3FN2, 4-Fluoro-1H-pyrazole, 95%.

What is the molecular formula and molecular weight of 4-Fluoro-1H-pyrazole, 95%?

4-Fluoro-1H-pyrazole, 95% has the molecular formula C3H3FN2 and a molecular weight of 86.07 g/mol. Its IUPAC name is 4-fluoro-1H-pyrazole.

Which grade and pack sizes of 4-Fluoro-1H-pyrazole, 95% can I order?

We supply 4-Fluoro-1H-pyrazole, 95% in (95%) grade, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Fluoro-1H-pyrazole, 95%?

Yes. Every lot of 4-Fluoro-1H-pyrazole, 95% 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 4-Fluoro-1H-pyrazole, 95% be shipped internationally?

Yes. 4-Fluoro-1H-pyrazole, 95% 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.