4-Chloro-1H-pyrazole

4-氯吡唑

Also known as: 4-Chloropyrazole, 4-chloro-1H-pyrazole, 4-chloro-1h-pyrazol, 4-chloro-pyrazol

4-Chloro-1H-pyrazole (CAS 15878-00-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3ClN2 and a molecular weight of 102.522 g/mol. It is also known as 4-Chloropyrazole, 4-chloro-1H-pyrazole and 4-chloro-1h-pyrazol. Key properties include a melting point of 75-76ºC, a boiling point of 220.0±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 98.8±5.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
15878-00-9
Jingsj CID
J-1361776-1
Molecular Formula
C3H3ClN2
Chinese Name
4-氯吡唑
Molecular Weight
102.522 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point75-76ºC
Boiling Point220.0±0.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point98.8±5.4 °C

Frequently Asked Questions

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

The CAS number of 4-Chloro-1H-pyrazole is 15878-00-9.

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

4-Chloro-1H-pyrazole has molecular formula C3H3ClN2 and molecular weight 102.522 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-1H-pyrazole (CAS 15878-00-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361776-1 (accessed 2026-10-22).

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