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Isobutylethyne

Also known as: (CH3)2CHCH2CequivCH, 1-Pentyne, 4-methyl-, 1-Pentyne, 4-methyl- (8CI, 9CI), 4-METHYL-1-PENTYNE, 4-METHYL-1-PENTYNE, 98%4-METHYL-1-PENTYNE, 98%4-METHYL-1-PENTYNE, 98%4-METHYL-1-PENTYNE, 98%, 4-Methyl-1-pentyne, 4-Methyl-1-pentyne 98%, 4-Methylpent-1-yne, 4-methyl-1-pentyne, 4-methyl-pent-1-yne, ISOBUTYLACETYLENE, MFCD00039857

Isobutylethyne (CAS 7154-75-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H10 and a molecular weight of 82.144 g/mol. Key properties include a melting point of -104.6°C, a boiling point of 60.0±8.0 °C at 760 mmHg, a density of 0.7±0.1 g/cm3 and a flash point of -29.1±2.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7154-75-8
Jingsj CID
J-27215-1
Molecular Formula
C6H10
Molecular Weight
82.144 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-104.6°C
Boiling Point60.0±8.0 °C at 760 mmHg
Density0.7±0.1 g/cm3
Flash Point-29.1±2.8 °C
Exact Mass82.078247
LogP2.41
Vapor Pressure209.8±0.0 mmHg at 25°C
Refractive Index1.409
Additional PropertyInsoluble in water. Soluble in common organic solvents of low polarity.

Frequently Asked Questions

What is the CAS number of Isobutylethyne?

The CAS number of Isobutylethyne is 7154-75-8.

What are the molecular formula and molecular weight of Isobutylethyne?

Isobutylethyne has molecular formula C6H10 and molecular weight 82.144 g/mol.

What are the upstream and downstream products of Isobutylethyne?

For Isobutylethyne, Upstream Products: 1-Pentene, 4-methyl-; Downstream Products: 5-METHYL-2-HEXYNE.

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

Last updated:

How to cite: Jingsj. "Isobutylethyne (CAS 7154-75-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27215-1 (accessed 2026-11-09).

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