4-(2-pyridin-4-ylethynyl)pyridine

1,2-二吡啶乙炔

Also known as: 1,2-di(pyridin-4-yl)ethyne, 1,2-bis(4-pyridyl)acetylene, 1,2-bis(4-pyridyl)ethyne, 1,2-(4'-dipyridyl)acetylene, 4,4'-(1,2-ethynediyl)bis(pyridine)

4-(2-pyridin-4-ylethynyl)pyridine (CAS 73564-69-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H8N2 and a molecular weight of 180.20500 g/mol. It is also known as 1,2-di(pyridin-4-yl)ethyne, 1,2-bis(4-pyridyl)acetylene and 1,2-bis(4-pyridyl)ethyne. Key properties include a boiling point of 350.9ºC at 760mmHg, a density of 1.18g/cm3 and a flash point of 155.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
73564-69-9
Jingsj CID
J-932035-2
Molecular Formula
C12H8N2
Chinese Name
1,2-二吡啶乙炔
Molecular Weight
180.20500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point350.9ºC at 760mmHg
Density1.18g/cm3
Flash Point155.1ºC

Frequently Asked Questions

What is the CAS number of 4-(2-pyridin-4-ylethynyl)pyridine?

The CAS number of 4-(2-pyridin-4-ylethynyl)pyridine is 73564-69-9.

What are the molecular formula and molecular weight of 4-(2-pyridin-4-ylethynyl)pyridine?

4-(2-pyridin-4-ylethynyl)pyridine has molecular formula C12H8N2 and molecular weight 180.20500 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(2-pyridin-4-ylethynyl)pyridine (CAS 73564-69-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-932035-2 (accessed 2026-10-22).

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