2,3-Dimethyl-4-penten-2-ol

Also known as: 2,3-Dimethylpent-4-en-2-ol, 4-Penten-2-ol, 2,3-dimethyl-

2,3-Dimethyl-4-penten-2-ol (CAS 19781-52-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C7H14O and a molecular weight of 114.18500 g/mol. Key properties include a boiling point of 142.8ºC at 760mmHg, a density of 0.832g/cm3 and a flash point of 49.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19781-52-3
Jingsj CID: J-1498490-8
Molecular Formula: C₇H₁₄O
Molecular Weight: 114.18500 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	142.8ºC at 760mmHg
Density	0.832g/cm3
Flash Point	49.9ºC
Exact Mass	114.10400
PSA	20.23000
LogP	1.57940
Vapor Pressure	2.22mmHg at 25°C
Refractive Index	1.444

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 2,3-Dimethyl-4-penten-2-ol?

The CAS number of 2,3-Dimethyl-4-penten-2-ol is 19781-52-3.

What are the molecular formula and molecular weight of 2,3-Dimethyl-4-penten-2-ol?

2,3-Dimethyl-4-penten-2-ol has molecular formula C7H14O and molecular weight 114.18500 g/mol.

What are the upstream and downstream products of 2,3-Dimethyl-4-penten-2-ol?

For 2,3-Dimethyl-4-penten-2-ol, Upstream Products: 3-Chloro-1-butene, (E)-1-Chlorobut-2-ene, 3-Chloro-2-methyl-1-propene.

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. "2,3-Dimethyl-4-penten-2-ol (CAS 19781-52-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498490-8 (accessed 2026-11-09).

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