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2,4,6-Tri-tert-butylphenol

Also known as: 2,4,6-Tri-tert-butylphenol, 2,4,6-Tris(1,1-dimethylethyl)phenol, Phenol, 2,4,6-tris(1,1-dimethylethyl)-, Antioxidant 246, Antioxidant 333, 2,4,6-Tri-t-butylphenol, 2,4,6-Tris(tert-butyl)phenol, 2,4,6-Tritert-butylphenol

2,4,6-Tri-tert-butylphenol (CAS 732-26-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C18H30O and a molecular weight of 262.430 g/mol. Key properties include a melting point of 125-130 °C(lit.), a boiling point of 278.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 129.3±8.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
732-26-3
Jingsj CID
J-49500-1
Molecular Formula
C18H30O
Molecular Weight
262.430 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point125-130 °C(lit.)
Boiling Point278.0±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point129.3±8.4 °C
Exact Mass262.229675
PSA20.23000
LogP6.55
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.490
Additional Propertyinsoluble

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H400 — Very toxic to aquatic life

Frequently Asked Questions

What is the CAS number of 2,4,6-Tri-tert-butylphenol?

The CAS number of 2,4,6-Tri-tert-butylphenol is 732-26-3.

What are the molecular formula and molecular weight of 2,4,6-Tri-tert-butylphenol?

2,4,6-Tri-tert-butylphenol has molecular formula C18H30O and molecular weight 262.430 g/mol.

Is 2,4,6-Tri-tert-butylphenol hazardous?

2,4,6-Tri-tert-butylphenol has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H400 — Very toxic to aquatic life.

What are the upstream and downstream products of 2,4,6-Tri-tert-butylphenol?

For 2,4,6-Tri-tert-butylphenol, Upstream Products: Isobutylene, Phenol, 2,4-Di-tert-butylphenol; Downstream Products: 2,4-Di-tert-butylphenol, tert-Butanol, 4-(Methylamino)benzonitrile.

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

Last updated:

How to cite: Jingsj. "2,4,6-Tri-tert-butylphenol (CAS 732-26-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49500-1 (accessed 2026-11-09).

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