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1-pentene

Also known as: 1-AMYLENE, 1-PENTENE, 1-amylene, ALPHA-AMYLENE, AMYLENE, N-AMYLENE, PENT-1-ENE, PENTENE, PENTENE, MIXTURE, PENTENE,TECHNICAL, amylene, n-amylene, pentene,mixture, pentene,technical, trimethylethylene

1-pentene (CAS 25377-72-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H20 and a molecular weight of 140.27000 g/mol. Key properties include a melting point of -165ºC, a boiling point of 29.9ºC at 760 mmHg and a density of 0.66 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
25377-72-4
Jingsj CID
J-1993641-3
Molecular Formula
C10H20
Molecular Weight
140.27000 g/mol
Category
Aliphatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Melting Point-165ºC
Boiling Point29.9ºC at 760 mmHg
Density0.66 g/cm3
Exact Mass70.07830
LogP1.97250
Refractive Indexn20/D 1.371(lit.)

Frequently Asked Questions

What is the CAS number of 1-pentene?

The CAS number of 1-pentene is 25377-72-4.

What are the molecular formula and molecular weight of 1-pentene?

1-pentene has molecular formula C10H20 and molecular weight 140.27000 g/mol.

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

Last updated:

How to cite: Jingsj. "1-pentene (CAS 25377-72-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993641-3 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.