2-Pentene, 4-methyl-,(2Z)-

顺式-4-甲基-2-戊烯

Also known as: 4-Methyl-cis-2-pentene, EINECS 211-616-6, MFCD00065138

2-Pentene, 4-methyl-,(2Z)- (CAS 691-38-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H12 and a molecular weight of 84.15950 g/mol. It is also known as 4-Methyl-cis-2-pentene, EINECS 211-616-6 and MFCD00065138. Key properties include a melting point of -134.4ºC, a boiling point of 57-58ºC(lit.), a density of 0.686 g/mL at 20ºC(lit.) and a flash point of -28 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
691-38-3
Jingsj CID
J-1990129-1
Molecular Formula
C6H12
Chinese Name
顺式-4-甲基-2-戊烯
Molecular Weight
84.15950 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-134.4ºC
Boiling Point57-58ºC(lit.)
Density0.686 g/mL at 20ºC(lit.)
Flash Point-28 °F

Frequently Asked Questions

What is the CAS number of 2-Pentene, 4-methyl-,(2Z)-?

The CAS number of 2-Pentene, 4-methyl-,(2Z)- is 691-38-3.

What are the molecular formula and molecular weight of 2-Pentene, 4-methyl-,(2Z)-?

2-Pentene, 4-methyl-,(2Z)- has molecular formula C6H12 and molecular weight 84.15950 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Pentene, 4-methyl-,(2Z)- (CAS 691-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990129-1 (accessed 2026-10-22).

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