2-Chloro-5-ethynylpyridine
2-氯-5-乙炔吡啶
Also known as: 2-chloro-5-ethynyl-pyridine, pyridine, 2-chloro-5-ethynyl-, 2-chloro-5-ethynyl-Pyridine, PYRIDINE,2-CHLORO-5-ETHYNYL, Pyridine, 2-chloro-5-ethynyl- (9CI)
2-Chloro-5-ethynylpyridine (CAS 263012-63-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4ClN and a molecular weight of 137.566 g/mol. It is also known as 2-chloro-5-ethynyl-pyridine, pyridine, 2-chloro-5-ethynyl- and 2-chloro-5-ethynyl-Pyridine. Key properties include a boiling point of 208.3±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 99.3±8.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 263012-63-1
- Jingsj CID
- J-1403296-5
- Molecular Formula
- C7H4ClN
- Chinese Name
- 2-氯-5-乙炔吡啶
- Molecular Weight
- 137.566 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 208.3±25.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 99.3±8.8 °C |
Frequently Asked Questions
What is the CAS number of 2-Chloro-5-ethynylpyridine?
The CAS number of 2-Chloro-5-ethynylpyridine is 263012-63-1.
What are the molecular formula and molecular weight of 2-Chloro-5-ethynylpyridine?
2-Chloro-5-ethynylpyridine has molecular formula C7H4ClN and molecular weight 137.566 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-ethynylpyridine (CAS 263012-63-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1403296-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.