2-Chloro-5-ethynylpyrazine

2-氯-5-乙炔吡嗪

Also known as: Pyrazine, 2-chloro-5-ethynyl-, 5-Chloro-2-ethynyl-1,4-diazine, (5-Chloropyrazin-2-yl)acetylene

2-Chloro-5-ethynylpyrazine (CAS 1196153-73-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3ClN2 and a molecular weight of 138.55400 g/mol. It is also known as Pyrazine, 2-chloro-5-ethynyl-, 5-Chloro-2-ethynyl-1,4-diazine and (5-Chloropyrazin-2-yl)acetylene. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1196153-73-7
Jingsj CID
J-1407278-9
Molecular Formula
C6H3ClN2
Chinese Name
2-氯-5-乙炔吡嗪
Molecular Weight
138.55400 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Frequently Asked Questions

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

The CAS number of 2-Chloro-5-ethynylpyrazine is 1196153-73-7.

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

2-Chloro-5-ethynylpyrazine has molecular formula C6H3ClN2 and molecular weight 138.55400 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Chloro-5-ethynylpyrazine (CAS 1196153-73-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1407278-9 (accessed 2026-10-25).

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