3,4,5-Trimethoxybenzyl alcohol

Also known as: (3,4,5-Trimethoxyphenyl)methanol, 3,4,5-Trimethoxybenzenemethanol, Benzenemethanol, 3,4,5-trimethoxy-, Benzyl alcohol, 3,4,5-trimethoxy-

3,4,5-Trimethoxybenzyl alcohol (CAS 3840-31-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C10H14O4 and a molecular weight of 198.216 g/mol. Key properties include a boiling point of 349.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 141.7±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3840-31-1
Jingsj CID: J-1343752-0
Molecular Formula: C₁₀H₁₄O₄
Molecular Weight: 198.216 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	349.5±0.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	141.7±26.5 °C
Exact Mass	198.089203
PSA	47.92000
LogP	0.47
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.514

Customs & Trade Information

HS Code	2909499000
Summary	2909499000. ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives. 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 3,4,5-Trimethoxybenzyl alcohol?

The CAS number of 3,4,5-Trimethoxybenzyl alcohol is 3840-31-1.

What are the molecular formula and molecular weight of 3,4,5-Trimethoxybenzyl alcohol?

3,4,5-Trimethoxybenzyl alcohol has molecular formula C10H14O4 and molecular weight 198.216 g/mol.

What are the upstream and downstream products of 3,4,5-Trimethoxybenzyl alcohol?

For 3,4,5-Trimethoxybenzyl alcohol, Upstream Products: 3,4,5-Trimethoxybenzaldehyde, Methyl 3,4,5-trimethoxybenzoate, 3,4,5-Trimethoxybenzoic acid; Downstream Products: 2-(3,4,5-Trimethoxyphenyl)ethanol, 3,4,5-trimethoxybenzyl chloride, 2,3,4-Trimethoxy-6-methylphenol.

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. "3,4,5-Trimethoxybenzyl alcohol (CAS 3840-31-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1343752-0 (accessed 2026-11-09).

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