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2-Carboxy-3,4-dimethoxybenzaldehyde

Also known as: 6-Formyl-2,3-dimethoxybenzoic acid, 5,6-Dimethoxyphthalaldehydic acid, Opianic acid, 2,3-Dimethoxy-6-formylbenzoic acid, 5,6-Dimethoxy-2-formylbenzoic acid, Benzoic acid, 6-formyl-2,3-dimethoxy-, 6-Formyl-2,3-dimethoxy-benzoic acid

2-Carboxy-3,4-dimethoxybenzaldehyde (CAS 519-05-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H10O5 and a molecular weight of 210.18300 g/mol. Key properties include a melting point of 145-148°C, a boiling point of 386.3ºC at 760 mmHg, a density of 1.3 g/cm3 and a flash point of 155.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
519-05-1
Jingsj CID
J-6646-2
Molecular Formula
C10H10O5
Molecular Weight
210.18300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point145-148°C
Boiling Point386.3ºC at 760 mmHg
Density1.3 g/cm3
Flash Point155.1ºC
Exact Mass210.05300
PSA72.83000
LogP1.21450
Refractive Index1.573

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 2-Carboxy-3,4-dimethoxybenzaldehyde?

The CAS number of 2-Carboxy-3,4-dimethoxybenzaldehyde is 519-05-1.

What are the molecular formula and molecular weight of 2-Carboxy-3,4-dimethoxybenzaldehyde?

2-Carboxy-3,4-dimethoxybenzaldehyde has molecular formula C10H10O5 and molecular weight 210.18300 g/mol.

What are the upstream and downstream products of 2-Carboxy-3,4-dimethoxybenzaldehyde?

For 2-Carboxy-3,4-dimethoxybenzaldehyde, Upstream Products: Veratraldehyde, Noscapine, Meconine; Downstream Products: Veratraldehyde, Veratric acid, Isovanillin.

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

Last updated:

How to cite: Jingsj. "2-Carboxy-3,4-dimethoxybenzaldehyde (CAS 519-05-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6646-2 (accessed 2026-11-06).

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