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3,5-Dimethyl-4-methoxybenzoic acid

Also known as: 3,5-Dimethyl-p-anisic acid, 4-Methoxy-3,5-dimethylbenzoic acid, 3,5-Dimethyl-4-anisic acid, Benzoic acid, 4-methoxy-3,5-dimethyl-

3,5-Dimethyl-4-methoxybenzoic acid (CAS 21553-46-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H12O3 and a molecular weight of 180.201 g/mol. Key properties include a melting point of 191-195 °C(lit.), a boiling point of 293.5±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 113.8±19.4 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic 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.
21553-46-8
Jingsj CID
J-44196-3
Molecular Formula
C10H12O3
Molecular Weight
180.201 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point191-195 °C(lit.)
Boiling Point293.5±35.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point113.8±19.4 °C
Exact Mass180.078644
PSA46.53000
LogP2.88
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.537

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic 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-Dimethyl-4-methoxybenzoic acid?

The CAS number of 3,5-Dimethyl-4-methoxybenzoic acid is 21553-46-8.

What are the molecular formula and molecular weight of 3,5-Dimethyl-4-methoxybenzoic acid?

3,5-Dimethyl-4-methoxybenzoic acid has molecular formula C10H12O3 and molecular weight 180.201 g/mol.

Is 3,5-Dimethyl-4-methoxybenzoic acid hazardous?

3,5-Dimethyl-4-methoxybenzoic acid has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 3,5-Dimethyl-4-methoxybenzoic acid?

For 3,5-Dimethyl-4-methoxybenzoic acid, Upstream Products: 4-Methoxy-3,5-dimethylbenzonitrile, 4-Bromo-2,6-dimethylanisole, 1-(4-Methoxy-3,5-dimethylphenyl)ethanone; Downstream Products: 4-Hydroxy-3,5-dimethylbenzoic acid.

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-Dimethyl-4-methoxybenzoic acid (CAS 21553-46-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44196-3 (accessed 2026-11-09).

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