4-Bromo-1-methyl-1H-pyrazole

4-溴-1-甲基-1H-吡唑

Also known as: 1-Methyl-4-bromo-1H-pyrazole, 4-Bromo-1-methylpyrazole, 1-Methyl-4-bromopyrazole, MFCD02179565

CAS No.
15803-02-8
Jingsj CID
J-23505-5
Molecular Formula
C4H5BrN2
Chinese Name
4-溴-1-甲基-1H-吡唑
Molecular Weight
161.000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point185-188ºC
Boiling Point197.1±13.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point73.0±19.8 °C

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 4-Bromo-1-methyl-1H-pyrazole?

15803-02-8

What are the molecular formula and molecular weight of 4-Bromo-1-methyl-1H-pyrazole?

C4H5BrN2, molecular weight 161.000 g/mol

Is 4-Bromo-1-methyl-1H-pyrazole hazardous?

Danger

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026