4-bromo-1-tert-butyl-1H-pyrazole

4-溴-1-叔丁基-1H-吡唑

Also known as: 1-tert-butyl-4-bromopyrazole, 4-bromo-1-(tert-butyl)-1H-pyrazole, 4-bromo-1-t-butylpyrazole, 1H-pyrazole, 4-bromo-1-(1,1-dimethylethyl)-

4-bromo-1-tert-butyl-1H-pyrazole (CAS 70951-85-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H11BrN2 and a molecular weight of 203.08000 g/mol. It is also known as 1-tert-butyl-4-bromopyrazole, 4-bromo-1-(tert-butyl)-1H-pyrazole and 4-bromo-1-t-butylpyrazole. Key property: a boiling point of 229.8±13.0°C at 760 mmHg. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 70951-85-8
Jingsj CID: J-1356574-1
Molecular Formula: C₇H₁₁BrN₂
Chinese Name: 4-溴-1-叔丁基-1H-吡唑
Molecular Weight: 203.08000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	229.8±13.0°C at 760 mmHg

Frequently Asked Questions

What is the CAS number of 4-bromo-1-tert-butyl-1H-pyrazole?

The CAS number of 4-bromo-1-tert-butyl-1H-pyrazole is 70951-85-8.

What are the molecular formula and molecular weight of 4-bromo-1-tert-butyl-1H-pyrazole?

4-bromo-1-tert-butyl-1H-pyrazole has molecular formula C7H11BrN2 and molecular weight 203.08000 g/mol.

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-tert-butyl-1H-pyrazole (CAS 70951-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1356574-1 (accessed 2026-10-24).

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