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3-Methyl-3-pentanol

Also known as: 3-Methylpentan-3-ol, Diethylmethylcarbinol, 3-Pentanol, 3-methyl-, Methyldiethylcarbinol

3-Methyl-3-pentanol (CAS 77-74-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H14O and a molecular weight of 102.175 g/mol. Key properties include a melting point of -24ºC, a boiling point of 122.4±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 46.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour and H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
77-74-7
Jingsj CID
J-1117692-7
Molecular Formula
C6H14O
Molecular Weight
102.175 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-24ºC
Boiling Point122.4±0.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point46.1±0.0 °C
Exact Mass102.104462
PSA20.23000
LogP1.57
Vapor Pressure6.7±0.4 mmHg at 25°C
Refractive Index1.415

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed

Frequently Asked Questions

What is the CAS number of 3-Methyl-3-pentanol?

The CAS number of 3-Methyl-3-pentanol is 77-74-7.

What are the molecular formula and molecular weight of 3-Methyl-3-pentanol?

3-Methyl-3-pentanol has molecular formula C6H14O and molecular weight 102.175 g/mol.

Is 3-Methyl-3-pentanol hazardous?

3-Methyl-3-pentanol has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed.

What are the upstream and downstream products of 3-Methyl-3-pentanol?

For 3-Methyl-3-pentanol, Upstream Products: Citric acid, 3-Methyl-1-pentyn-3-ol, Pentane, 3-methyl-; Downstream Products: Benzopinacole, 2-Ethyl-2-methylbutanoic acid, 2,2-Dimethylvaleric Acid.

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

Last updated:

How to cite: Jingsj. "3-Methyl-3-pentanol (CAS 77-74-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117692-7 (accessed 2026-11-07).

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