3-Methyl-1-penten-4-yn-3-ol

Also known as: Ethynyl methyl vinyl carbinol, 3-Methyl-4-penten-1-yn-3-ol, 3-Methylpent-1-en-4-yn-3-ol, 1-Penten-4-yn-3-ol, 3-methyl-

3-Methyl-1-penten-4-yn-3-ol (CAS 3230-69-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H8O and a molecular weight of 96.127 g/mol. Key properties include a boiling point of 127.7±20.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 29.2±14.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3230-69-1
Jingsj CID: J-8763-8
Molecular Formula: C₆H₈O
Molecular Weight: 96.127 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	127.7±20.0 °C at 760 mmHg
Density	0.9±0.1 g/cm3
Flash Point	29.2±14.1 °C
Exact Mass	96.057518
PSA	20.23000
LogP	0.67
Vapor Pressure	5.0±0.5 mmHg at 25°C
Refractive Index	1.468

Customs & Trade Information

HS Code	2905290000
Summary	2905290000 unsaturated monohydric alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Methyl-1-penten-4-yn-3-ol?

The CAS number of 3-Methyl-1-penten-4-yn-3-ol is 3230-69-1.

What are the molecular formula and molecular weight of 3-Methyl-1-penten-4-yn-3-ol?

3-Methyl-1-penten-4-yn-3-ol has molecular formula C6H8O and molecular weight 96.127 g/mol.

What are the upstream and downstream products of 3-Methyl-1-penten-4-yn-3-ol?

For 3-Methyl-1-penten-4-yn-3-ol, Upstream Products: magnesium sulfate, Bromoethane, Ethylmagnesium bromide; Downstream Products: Etretinate, 3-methylpent-1-en-3-ol, 3-Methyl-3-pentanol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-Methyl-1-penten-4-yn-3-ol (CAS 3230-69-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8763-8 (accessed 2026-11-09).

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