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3,4-Dimethoxybenzoic anhydride

Also known as: Veratric anhydride, 3,4-Dimethoxybenzoic anhydride, Benzoic acid, 3,4-dimethoxy-, 1,1'-anhydride, 3,4-dimethoxybenzoyl 3,4-dimethoxybenzoate

3,4-Dimethoxybenzoic anhydride (CAS 24824-54-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H18O7 and a molecular weight of 346.33100 g/mol. Key property: a melting point of 122-124ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
24824-54-2
Jingsj CID
J-1493562-7
Molecular Formula
C18H18O7
Molecular Weight
346.33100 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point122-124ºC
Exact Mass346.10500
PSA80.29000
LogP2.71820

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 3,4-Dimethoxybenzoic anhydride?

The CAS number of 3,4-Dimethoxybenzoic anhydride is 24824-54-2.

What are the molecular formula and molecular weight of 3,4-Dimethoxybenzoic anhydride?

3,4-Dimethoxybenzoic anhydride has molecular formula C18H18O7 and molecular weight 346.33100 g/mol.

What are the upstream and downstream products of 3,4-Dimethoxybenzoic anhydride?

For 3,4-Dimethoxybenzoic anhydride, Upstream Products: Veratric acid, 3,4-Dimethoxybenzoyl chloride; Downstream Products: Quercetagetin, Nobiletin, 2-(3,4-dimethoxyphenyl)-5,7-dihydroxy-3-methoxychromen-4-one.

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

Last updated:

How to cite: Jingsj. "3,4-Dimethoxybenzoic anhydride (CAS 24824-54-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1493562-7 (accessed 2026-11-09).

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