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3-Methoxycinnamic acid

Also known as: (2E)-3-(3-Methoxyphenyl)acrylic acid, (2E)-3-(3-methoxyphenyl)prop-2-enoic acid, (E)-3-(3-Methoxyphenyl)propenoic acid, 3-Methoxy-trans-cinnamic acid, 3-Methoxybenzeneacrylic acid, 3-Methoxybenzenepropenoic acid, m-Methoxycinnamic acid, trans-3-(3-Methoxyphenyl)acrylic acid, MFCD00004386, EINECS 228-049-5, 2-Propenoic acid, 3-(3-methoxyphenyl)-, (2E)-

3-Methoxycinnamic acid (CAS 6099-04-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O3 and a molecular weight of 178.185 g/mol. Key properties include a melting point of 116-119ºC(lit.), a boiling point of 329.9±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 132.6±14.4 °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.
6099-04-3
Jingsj CID
J-17141-5
Molecular Formula
C10H10O3
Molecular Weight
178.185 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point116-119ºC(lit.)
Boiling Point329.9±17.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point132.6±14.4 °C
Exact Mass178.062988
PSA46.53000
LogP2.39
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.591

GHS Safety & Compliance

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

The CAS number of 3-Methoxycinnamic acid is 6099-04-3.

What are the molecular formula and molecular weight of 3-Methoxycinnamic acid?

3-Methoxycinnamic acid has molecular formula C10H10O3 and molecular weight 178.185 g/mol.

Is 3-Methoxycinnamic acid hazardous?

3-Methoxycinnamic acid 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-Methoxycinnamic acid?

For 3-Methoxycinnamic acid, Upstream Products: Malonic acid, m-Anisaldehyde, 3-Hydroxybenzaldehyde; Downstream Products: 5-Methoxy-1-indanone, 3-(3-methoxyphenyl)propanal, m-Anisaldehyde.

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-Methoxycinnamic acid (CAS 6099-04-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17141-5 (accessed 2026-11-09).

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