5-ethynyl-2-methoxypyridine

5-乙炔-2-甲氧基吡啶

Also known as: 2-methoxy-5-ethynylpyridine, 5-ethynyl-2-methoxypyridi, pyridine,5-ethynyl-2-methoxy-(9CI)

5-ethynyl-2-methoxypyridine (CAS 663955-59-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10O and a molecular weight of 146.18600 g/mol. It is also known as 2-methoxy-5-ethynylpyridine, 5-ethynyl-2-methoxypyridi and pyridine,5-ethynyl-2-methoxy-(9CI). Key properties include a boiling point of 196.2±25.0 °C(Predicted) and a density of 1.08±0.1 g/cm3(Predicted). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
663955-59-7
Jingsj CID
J-1424724-4
Molecular Formula
C10H10O
Chinese Name
5-乙炔-2-甲氧基吡啶
Molecular Weight
146.18600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point196.2±25.0 °C(Predicted)
Density1.08±0.1 g/cm3(Predicted)

Frequently Asked Questions

What is the CAS number of 5-ethynyl-2-methoxypyridine?

The CAS number of 5-ethynyl-2-methoxypyridine is 663955-59-7.

What are the molecular formula and molecular weight of 5-ethynyl-2-methoxypyridine?

5-ethynyl-2-methoxypyridine has molecular formula C10H10O and molecular weight 146.18600 g/mol.

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

Last updated:

How to cite: Jingsj. "5-ethynyl-2-methoxypyridine (CAS 663955-59-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1424724-4 (accessed 2026-10-22).

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