2-Amino-5-hydroxy-4-methoxybenzoic acid

Also known as: 5-Hydroxy-4-methoxyanthranilic Acid, Benzoic acid, 2-amino-5-hydroxy-4-methoxy-

2-Amino-5-hydroxy-4-methoxybenzoic acid (CAS 31839-21-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H9NO4 and a molecular weight of 183.16100 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 31839-21-1
Jingsj CID: J-1190250-4
Molecular Formula: C₈H₉NO₄
Molecular Weight: 183.16100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	183.05300
PSA	92.78000
LogP	1.26240

Customs & Trade Information

HS Code	2922509090
Summary	2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. 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-Amino-5-hydroxy-4-methoxybenzoic acid?

The CAS number of 2-Amino-5-hydroxy-4-methoxybenzoic acid is 31839-21-1.

What are the molecular formula and molecular weight of 2-Amino-5-hydroxy-4-methoxybenzoic acid?

2-Amino-5-hydroxy-4-methoxybenzoic acid has molecular formula C8H9NO4 and molecular weight 183.16100 g/mol.

What are the upstream and downstream products of 2-Amino-5-hydroxy-4-methoxybenzoic acid?

For 2-Amino-5-hydroxy-4-methoxybenzoic acid, Upstream Products: 5-Hydroxy-4-methoxy-2-nitrobenzoic acid, 4,5-Dimethoxy-2-nitrobenzoic acid, Methyl 4,5-dimethoxy-2-nitrobenzoate.

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-Amino-5-hydroxy-4-methoxybenzoic acid (CAS 31839-21-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1190250-4 (accessed 2026-11-09).

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