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3,5-Dimethoxy-4-hydroxyphenylacetic acid

Also known as: 4-Hydroxy-3,5-dimethoxyphenylacetic acid, 4-Hydroxy-3,5-dimethoxybenzeneacetic acid, Homosyringic acid, (4-Hydroxy-3,5-dimethoxyphenyl)acetic acid, 2-(4-Hydroxy-3,5-dimethoxyphenyl)acetic acid, Benzeneacetic acid, 4-hydroxy-3,5-dimethoxy-, MFCD00016834, EINECS 224-494-4

3,5-Dimethoxy-4-hydroxyphenylacetic acid (CAS 4385-56-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H12O5 and a molecular weight of 212.199 g/mol. Key properties include a melting point of 127-131 °C(lit.), a boiling point of 397.1±37.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 158.7±20.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4385-56-2
Jingsj CID
J-45952-9
Molecular Formula
C10H12O5
Molecular Weight
212.199 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point127-131 °C(lit.)
Boiling Point397.1±37.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point158.7±20.0 °C
Exact Mass212.068466
PSA75.99000
LogP0.06
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.557

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,5-Dimethoxy-4-hydroxyphenylacetic acid?

The CAS number of 3,5-Dimethoxy-4-hydroxyphenylacetic acid is 4385-56-2.

What are the molecular formula and molecular weight of 3,5-Dimethoxy-4-hydroxyphenylacetic acid?

3,5-Dimethoxy-4-hydroxyphenylacetic acid has molecular formula C10H12O5 and molecular weight 212.199 g/mol.

Is 3,5-Dimethoxy-4-hydroxyphenylacetic acid hazardous?

3,5-Dimethoxy-4-hydroxyphenylacetic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 3,5-Dimethoxy-4-hydroxyphenylacetic acid?

For 3,5-Dimethoxy-4-hydroxyphenylacetic acid, Upstream Products: 2,6-Dimethoxyphenol, 4-acetoxy-3,5-dimethoxybenzoic acid, (4-Hydroxy-3,5-dimethoxyphenyl)acetonitrile.

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-Dimethoxy-4-hydroxyphenylacetic acid (CAS 4385-56-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45952-9 (accessed 2026-11-09).

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