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tert-Butanol

Also known as: 2-Methyl-2-propanol, Trimethylcarbinol, t-Butyl alcohol, tert-Butyl alcohol, 1,1-Dimethylethanol, 2-Methylpropan-2-ol, Trimethyl methanol, t-Butanol, tertiary butyl alcohol

tert-Butanol (CAS 75-65-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H10O and a molecular weight of 74.122 g/mol. Key properties include a melting point of 23-26 °C(lit.), a boiling point of 84.6±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 11.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H319 — Causes serious eye irritation and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
75-65-0
Jingsj CID
J-1499797-6
Molecular Formula
C4H10O
Molecular Weight
74.122 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point23-26 °C(lit.)
Boiling Point84.6±8.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point11.7±0.0 °C
Exact Mass74.073166
PSA20.23000
LogP0.51
Additional Property2.55 (vs air)
Vapor Pressure46.0±0.3 mmHg at 25°C
Refractive Index1.395
Additional Propertysoluble

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation
  • H336 — May cause drowsiness or dizziness

Customs & Trade Information

HS Code2905143000

Frequently Asked Questions

What is the CAS number of tert-Butanol?

The CAS number of tert-Butanol is 75-65-0.

What are the molecular formula and molecular weight of tert-Butanol?

tert-Butanol has molecular formula C4H10O and molecular weight 74.122 g/mol.

Is tert-Butanol hazardous?

tert-Butanol has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H319 — Causes serious eye irritation; H332 — Harmful if inhaled.

What are the upstream and downstream products of tert-Butanol?

For tert-Butanol, Upstream Products: tert-butoxytrimethylsilane, Isobutylene, Isobutane Residual Solvent Standard; Downstream Products: 2-Methyl-2-propanyl [2-(4-pyridinyl)ethyl]carbamate, tert-Butyl 1,3-benzodioxol-4-ylcarbamate.

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

Last updated:

How to cite: Jingsj. "tert-Butanol (CAS 75-65-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499797-6 (accessed 2026-11-07).

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