tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate

4-溴吡唑-1-羧酸叔丁酯

Also known as: 1-Boc-4-bromopyrazole, N-Boc-4-bromopyrazole, 4-Bromopyrazole-1-carboxylic acid tert-butyl ester, tert-butyl 4-bromopyrazole-1-carboxylate, 1,1-Dimethylethyl 4-bromo-1H-pyrazole-1-carboxylate, 1H-Pyrazole-1-carboxylic acid, 4-bromo-, 1,1-dimethylethyl ester, 2-Methyl-2-propanyl 4-bromo-1H-pyrazole-1-carboxylate

tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate (CAS 1150271-23-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H11BrN2O2 and a molecular weight of 247.089 g/mol. It is also known as 1-Boc-4-bromopyrazole, N-Boc-4-bromopyrazole and 4-Bromopyrazole-1-carboxylic acid tert-butyl ester. Key properties include a melting point of 48-52°C, a boiling point of 288.7±32.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 128.4±25.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1150271-23-0
Jingsj CID
J-1084640-3
Molecular Formula
C8H11BrN2O2
Chinese Name
4-溴吡唑-1-羧酸叔丁酯
Molecular Weight
247.089 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point48-52°C
Boiling Point288.7±32.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point128.4±25.1 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

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

The CAS number of tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate is 1150271-23-0.

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

tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate has molecular formula C8H11BrN2O2 and molecular weight 247.089 g/mol.

Is tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate hazardous?

tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "tert-Butyl 4-bromo-1H-pyrazole-1-carboxylate (CAS 1150271-23-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084640-3 (accessed 2026-10-25).

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