4-Chloro-1-butyne

4-氯-1-丁炔

Also known as: 1-Butyne, 4-chloro- (9CI), 4-chlorobut-1-yne, homopropargyl chloride, homopropargylic chloride, 4-chloro-but-1-yne

4-Chloro-1-butyne (CAS 51908-64-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H5Cl and a molecular weight of 88.53550 g/mol. It is also known as 1-Butyne, 4-chloro- (9CI), 4-chlorobut-1-yne and homopropargyl chloride. Key properties include a boiling point of 96ºC, a density of 0.986 and a flash point of 8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51908-64-6
Jingsj CID
J-1383418-8
Molecular Formula
C4H5Cl
Chinese Name
4-氯-1-丁炔
Molecular Weight
88.53550 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point96ºC
Density0.986
Flash Point8ºC

Frequently Asked Questions

What is the CAS number of 4-Chloro-1-butyne?

The CAS number of 4-Chloro-1-butyne is 51908-64-6.

What are the molecular formula and molecular weight of 4-Chloro-1-butyne?

4-Chloro-1-butyne has molecular formula C4H5Cl and molecular weight 88.53550 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-1-butyne (CAS 51908-64-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1383418-8 (accessed 2026-10-24).

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