1-Phenyl-1-propyne

1-苯基-1-丙炔

Also known as: 1-Phenylpropyne, 1-Methyl-2-phenylacetylene, Phenylmethylacetylene, Prop-1-yn-1-ylbenzene

1-Phenyl-1-propyne (CAS 623-32-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H36O2 and a molecular weight of 308.49900 g/mol. It is also known as 1-Phenylpropyne, 1-Methyl-2-phenylacetylene and Phenylmethylacetylene. Key properties include a boiling point of 185ºC(lit.), a density of 0.928 g/mL at 25ºC(lit.) and a flash point of 144 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
623-32-5
Jingsj CID
J-3900-2
Molecular Formula
C20H36O2
Chinese Name
1-苯基-1-丙炔
Molecular Weight
308.49900 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point185ºC(lit.)
Density0.928 g/mL at 25ºC(lit.)
Flash Point144 °F

Frequently Asked Questions

What is the CAS number of 1-Phenyl-1-propyne?

The CAS number of 1-Phenyl-1-propyne is 623-32-5.

What are the molecular formula and molecular weight of 1-Phenyl-1-propyne?

1-Phenyl-1-propyne has molecular formula C20H36O2 and molecular weight 308.49900 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Phenyl-1-propyne (CAS 623-32-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3900-2 (accessed 2026-10-23).

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