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tert-Butyl 1H-pyrazole-1-carboxylate

1H-吡唑-1-羧酸叔丁酯

Also known as: 1-Boc-pyrazole, N-Boc-pyrazole, 1-(tert-Butoxycarbonyl)pyrazole, tert-Butyl pyrazole-1-carboxylate, tert-Butyl 1H-pyrazol-1-carboxylate, 1H-Pyrazole-1-carboxylic acid, 1,1-dimethylethyl ester, 1H-pyrazol-1-yl pivalate, 2-Methyl-2-propanyl 1H-pyrazole-1-carboxylate

tert-Butyl 1H-pyrazole-1-carboxylate (CAS 219580-32-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H12N2O2 and a molecular weight of 168.193 g/mol. It is also known as 1-Boc-pyrazole, N-Boc-pyrazole and 1-(tert-Butoxycarbonyl)pyrazole. Key properties include a boiling point of 231.8±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 94.0±22.6 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
219580-32-2
Jingsj CID
J-1390451-3
Molecular Formula
C8H12N2O2
Chinese Name
1H-吡唑-1-羧酸叔丁酯
Molecular Weight
168.193 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point231.8±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point94.0±22.6 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

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

The CAS number of tert-Butyl 1H-pyrazole-1-carboxylate is 219580-32-2.

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

tert-Butyl 1H-pyrazole-1-carboxylate has molecular formula C8H12N2O2 and molecular weight 168.193 g/mol.

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

tert-Butyl 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 1H-pyrazole-1-carboxylate (CAS 219580-32-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1390451-3 (accessed 2026-10-22).

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