5-Chloro-2-ethynylpyrimidine

5-氯-2-乙炔嘧啶

Also known as: 5-chloro-2-ethynylpyrimidine, 5-chloro-2-ethynylpyrimidine - [C41828], pyrimidine, 5-chloro-2-ethynyl-, 5-Chloro-2-ethynylpyriMidine

5-Chloro-2-ethynylpyrimidine (CAS 1196156-95-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3ClN2 and a molecular weight of 138.554 g/mol. It is also known as 5-chloro-2-ethynylpyrimidine, 5-chloro-2-ethynylpyrimidine - [C41828] and pyrimidine, 5-chloro-2-ethynyl-. Key properties include a boiling point of 270.5±32.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 143.5±10.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1196156-95-2
Jingsj CID
J-989580-9
Molecular Formula
C6H3ClN2
Chinese Name
5-氯-2-乙炔嘧啶
Molecular Weight
138.554 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point270.5±32.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point143.5±10.7 °C

Frequently Asked Questions

What is the CAS number of 5-Chloro-2-ethynylpyrimidine?

The CAS number of 5-Chloro-2-ethynylpyrimidine is 1196156-95-2.

What are the molecular formula and molecular weight of 5-Chloro-2-ethynylpyrimidine?

5-Chloro-2-ethynylpyrimidine has molecular formula C6H3ClN2 and molecular weight 138.554 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Chloro-2-ethynylpyrimidine (CAS 1196156-95-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-989580-9 (accessed 2026-10-24).

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