2,4,5-Trimethylphenol

Also known as: 1-Hydroxy-2,4,5-trimethylbenzene, 5-Hydroxypseudocumene, Pseudocumenol, Phenol, 2,4,5-trimethyl-, UNII-3PCA9E425C, EINECS 207-832-5, MFCD00020050

2,4,5-Trimethylphenol (CAS 496-78-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H12O and a molecular weight of 136.191 g/mol. Key properties include a melting point of ºC, a boiling point of 232.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 102.3±8.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 496-78-6
Jingsj CID: J-33326-7
Molecular Formula: C₉H₁₂O
Molecular Weight: 136.191 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	ºC
Boiling Point	232.0±0.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	102.3±8.4 °C
Exact Mass	136.088821
PSA	20.23000
LogP	2.86
Vapor Pressure	0.0±0.4 mmHg at 25°C
Refractive Index	1.536

Customs & Trade Information

HS Code	2907199090
Summary	2907199090 other monophenols VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4,5-Trimethylphenol?

The CAS number of 2,4,5-Trimethylphenol is 496-78-6.

What are the molecular formula and molecular weight of 2,4,5-Trimethylphenol?

2,4,5-Trimethylphenol has molecular formula C9H12O and molecular weight 136.191 g/mol.

What are the upstream and downstream products of 2,4,5-Trimethylphenol?

For 2,4,5-Trimethylphenol, Upstream Products: (Methylthio)trimethylsilane, (Phenylthio)trimethylsilane, 2,5-Dimethylphenol; Downstream Products: 2'-Hydroxy-4',5'-dimethylacetophenone, 1,2,4-TRIMETHYLCYCLOHEXANE, 4-Hydroxy-2,3,6-trimethylphenyl acetate.

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. "2,4,5-Trimethylphenol (CAS 496-78-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33326-7 (accessed 2026-11-07).

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