Ethyl 5-(phenylethynyl)nicotinate

5-苯乙炔基烟酸乙酯

Also known as: Ethyl 5-(2-phenylethynyl)nicotinate, 5-phenylethynylnicotinic acid ethyl ester, ethyl 5-(phenylethynyl)pyridine-3-carboxylate, HMS555N17

Ethyl 5-(phenylethynyl)nicotinate (CAS 175203-65-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H13NO2 and a molecular weight of 251.28000 g/mol. It is also known as Ethyl 5-(2-phenylethynyl)nicotinate, 5-phenylethynylnicotinic acid ethyl ester and ethyl 5-(phenylethynyl)pyridine-3-carboxylate. Key properties include a boiling point of 405.9ºC at 760mmHg, a density of 1.18g/cm3 and a flash point of 199.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175203-65-3
Jingsj CID
J-1499028-3
Molecular Formula
C16H13NO2
Chinese Name
5-苯乙炔基烟酸乙酯
Molecular Weight
251.28000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point405.9ºC at 760mmHg
Density1.18g/cm3
Flash Point199.3ºC

Frequently Asked Questions

What is the CAS number of Ethyl 5-(phenylethynyl)nicotinate?

The CAS number of Ethyl 5-(phenylethynyl)nicotinate is 175203-65-3.

What are the molecular formula and molecular weight of Ethyl 5-(phenylethynyl)nicotinate?

Ethyl 5-(phenylethynyl)nicotinate has molecular formula C16H13NO2 and molecular weight 251.28000 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 5-(phenylethynyl)nicotinate (CAS 175203-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499028-3 (accessed 2026-10-24).

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