2-Chloro-3,4-dimethoxycinnamic acid

Also known as: 3-(2-Chloro-3,4-dimethoxyphenyl)acrylic acid, (2E)-3-(2-chloro-3,4-dimethoxyphenyl)-2-propenoic acid, 2-Chloro-3,4-dimethoxycinnamic acid, 98+%, MFCD00084947

2-Chloro-3,4-dimethoxycinnamic acid (CAS 99854-17-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H11ClO4 and a molecular weight of 242.65600 g/mol. Key properties include a melting point of 194-195ºC, a boiling point of 397.6ºC at 760mmHg, a density of 1.311g/cm3 and a flash point of 194.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 99854-17-8
Jingsj CID: J-3474-2
Molecular Formula: C₁₁H₁₁ClO₄
Molecular Weight: 242.65600 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	194-195ºC
Boiling Point	397.6ºC at 760mmHg
Density	1.311g/cm3
Flash Point	194.3ºC
Exact Mass	242.03500
PSA	55.76000
LogP	2.45500

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. 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 2-Chloro-3,4-dimethoxycinnamic acid?

The CAS number of 2-Chloro-3,4-dimethoxycinnamic acid is 99854-17-8.

What are the molecular formula and molecular weight of 2-Chloro-3,4-dimethoxycinnamic acid?

2-Chloro-3,4-dimethoxycinnamic acid has molecular formula C11H11ClO4 and molecular weight 242.65600 g/mol.

What are the upstream and downstream products of 2-Chloro-3,4-dimethoxycinnamic acid?

For 2-Chloro-3,4-dimethoxycinnamic acid, Upstream Products: 2-Chloro-3,4-dimethoxybenzaldehyde.

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. "2-Chloro-3,4-dimethoxycinnamic acid (CAS 99854-17-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3474-2 (accessed 2026-11-09).

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