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3,5-Dihydroxybenzyl alcohol

Also known as: 5-(Hydroxymethyl)resorcinol, 5-(Hydroxymethyl)-1,3-benzenediol, 1,3-Benzenediol, 5-(hydroxymethyl)-, 3,5-Dihydroxybenzenemethanol, Gentisyl alcohol (incorrect, should be excluded)

3,5-Dihydroxybenzyl alcohol (CAS 29654-55-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H8O3 and a molecular weight of 140.137 g/mol. Key properties include a melting point of 182-186 °C (dec.)(lit.), a boiling point of 360.4±11.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 188.9±13.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
29654-55-5
Jingsj CID
J-1523153-0
Molecular Formula
C7H8O3
Molecular Weight
140.137 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point182-186 °C (dec.)(lit.)
Boiling Point360.4±11.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point188.9±13.9 °C
Exact Mass140.047348
PSA60.69000
LogP-0.42
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.649

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2907299090
Summary2907299090 polyphenols; phenol-alcohols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。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 3,5-Dihydroxybenzyl alcohol?

The CAS number of 3,5-Dihydroxybenzyl alcohol is 29654-55-5.

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

3,5-Dihydroxybenzyl alcohol has molecular formula C7H8O3 and molecular weight 140.137 g/mol.

Is 3,5-Dihydroxybenzyl alcohol hazardous?

3,5-Dihydroxybenzyl alcohol has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

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

For 3,5-Dihydroxybenzyl alcohol, Upstream Products: 3,5-Dihydroxybenzoic acid, Methyl 3,5-dihydroxybenzoate, 3,5-Dibenzyloxybenzyl alcohol; Downstream Products: Isorhapontigenin, Rhapontigenin, Orcinol.

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

Last updated:

How to cite: Jingsj. "3,5-Dihydroxybenzyl alcohol (CAS 29654-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523153-0 (accessed 2026-11-06).

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