2-ethynyl-4,5-dimethylpyridine

2-乙炔基-4,5-二甲基吡啶

Also known as: Pyridine, 2-ethynyl-4,5-dimethyl- (9CI), 2-ethynyl-4,5-dimethylpyridine, f-1034

2-ethynyl-4,5-dimethylpyridine (CAS 512197-95-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9N and a molecular weight of 131.174 g/mol. It is also known as Pyridine, 2-ethynyl-4,5-dimethyl- (9CI) and f-1034. Key properties include a boiling point of 232.3±40.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 91.4±19.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
512197-95-4
Jingsj CID
J-1060041-2
Molecular Formula
C9H9N
Chinese Name
2-乙炔基-4,5-二甲基吡啶
Molecular Weight
131.174 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point232.3±40.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point91.4±19.9 °C

Frequently Asked Questions

What is the CAS number of 2-ethynyl-4,5-dimethylpyridine?

The CAS number of 2-ethynyl-4,5-dimethylpyridine is 512197-95-4.

What are the molecular formula and molecular weight of 2-ethynyl-4,5-dimethylpyridine?

2-ethynyl-4,5-dimethylpyridine has molecular formula C9H9N and molecular weight 131.174 g/mol.

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

Last updated:

How to cite: Jingsj. "2-ethynyl-4,5-dimethylpyridine (CAS 512197-95-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1060041-2 (accessed 2026-10-23).

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