5-ethynyl-2-methoxypyridine
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 C8H7NO and a molecular weight of 133.15000 g/mol. 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 Nov 2, 2026.
- CAS No.
- 663955-59-7
- Jingsj CID
- J-1424724-6
- Molecular Formula
- C8H7NO
- Molecular Weight
- 133.15000 g/mol
- Category
- Pharma Intermediates
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 196.2±25.0 °C(Predicted) |
|---|---|
| Density | 1.08±0.1 g/cm3(Predicted) |
| Exact Mass | 146.07300 |
| PSA | 9.23000 |
| LogP | 1.87090 |
| Refractive Index | 1.53 |
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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 C8H7NO and molecular weight 133.15000 g/mol.
What are the upstream and downstream products of 5-ethynyl-2-methoxypyridine?
For 5-ethynyl-2-methoxypyridine, Upstream Products: 5-Bromo-2-methoxypyridine, 2-Fluoro-5-iodopyridine.
Data compiled from public chemical databases such as PubChem 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-1424724-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.