4-Bromo-1,3,5-trimethyl-1H-pyrazole

4-溴-1,3,5-三甲基吡唑

Also known as: 4-Bromo-1,3,5-trimethylpyrazole, 1,3,5-Trimethyl-4-bromo-1H-pyrazole, Pyrazole, 4-bromo-1,3,5-trimethyl-

4-Bromo-1,3,5-trimethyl-1H-pyrazole (CAS 15801-69-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H9BrN2 and a molecular weight of 189.05300 g/mol. It is also known as 4-Bromo-1,3,5-trimethylpyrazole, 1,3,5-Trimethyl-4-bromo-1H-pyrazole and Pyrazole, 4-bromo-1,3,5-trimethyl-. Key properties include a melting point of 30-34 °C(lit.), a boiling point of 101-102 °C15 mm Hg(lit.), a density of 1.5g/cm3 and a flash point of 219 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 15801-69-1
Jingsj CID: J-26127-8
Molecular Formula: C₆H₉BrN₂
Chinese Name: 4-溴-1,3,5-三甲基吡唑
Molecular Weight: 189.05300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	30-34 °C(lit.)
Boiling Point	101-102 °C15 mm Hg(lit.)
Density	1.5g/cm3
Flash Point	219 °F

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 4-Bromo-1,3,5-trimethyl-1H-pyrazole?

The CAS number of 4-Bromo-1,3,5-trimethyl-1H-pyrazole is 15801-69-1.

What are the molecular formula and molecular weight of 4-Bromo-1,3,5-trimethyl-1H-pyrazole?

4-Bromo-1,3,5-trimethyl-1H-pyrazole has molecular formula C6H9BrN2 and molecular weight 189.05300 g/mol.

Is 4-Bromo-1,3,5-trimethyl-1H-pyrazole hazardous?

4-Bromo-1,3,5-trimethyl-1H-pyrazole has GHS signal word Danger.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4-Bromo-1,3,5-trimethyl-1H-pyrazole (CAS 15801-69-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26127-8 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.