4-Bromo-1H-pyrazole, 98+%

Catalog No.	Quantity
AAH6467314	25 g
AAH6467336	500 g
AAH64673A1	1 kg

Catalog No. AAH6467314 Supplier Thermo Scientific Chemicals Supplier No. H6467314

Description

CAS: 2075-45-8 | C3H3BrN2 | 146.98 g/mol

4-Bromopyrazole may be used in the preparation of 4-bromo-1-(2-chloroethyl)-1H-pyrazole. It may be used as starting material in the synthesis of 1,4?-bipyrazoles. Also used in the synthesis of various pharmaceutical and biologically active compounds, including inhibitors. It is also shown to be one of the 4-substituted pyrazoles, being able to act as inhibitor of liver alcohol dehydrogenase.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
4-Bromopyrazole may be used in the preparation of 4-bromo-1-(2-chloroethyl)-1H-pyrazole. It may be used as starting material in the synthesis of 1,4′-bipyrazoles. Also used in the synthesis of various pharmaceutical and biologically active compounds, including inhibitors. It is also shown to be one of the 4-substituted pyrazoles, being able to act as inhibitor of liver alcohol dehydrogenase.

Solubility
Slightly soluble in water.

Notes
Store in cool, dry place in tightly closed container. With adequate ventilation. Store away from oxidizing agent.

Specifications

Chemical Identifiers

• CAS: 2075-45-8
• Molecular Formula: C3H3BrN2
• Molecular Weight (g/mol): 146.98
• MDL Number: MFCD00075602
• InChI Key: WVGCPEDBFHEHEZ-UHFFFAOYSA-N
• Synonym: 4-bromopyrazole, 1h-pyrazole, 4-bromo, 4-brompyrazole, 4-bromo-pyrazole, pyrazole, 4-bromo, 4-bromo pyrazole, byz, zlchem 126, 1h-pyrazole,4-bromo, pubchem11041
• PubChem CID: 16375
• IUPAC Name: 4-bromo-1H-pyrazole
• SMILES: BrC1=CNN=C1

• Melting Point: 93°C to 96°C (literature)
• Boiling Point: 250°C to 260°C (literature)
• Quantity: 25 g
• Beilstein: 106510
• Solubility Information: Slightly soluble in water.
• Formula Weight: 146.97
• Percent Purity: ≥98%
• Physical Form: Solid
• Chemical Name or Material: 4-Bromo-1H-pyrazole

Safety and Handling

Hazard Category	H315-H319-H335
Hazard Statement	GHS H Statement H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
RTECSNumber	UQ6200000
TSCA	No
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only