5,6-Diamino-4-hydroxy-2-naphthoic acid

5,6-二氨基-4-羟基-2-萘羧酸

Also known as: 5,6-diamino-4-hydroxynaphthalene-2-carboxylic acid, 2-Naphthalenecarboxylic acid, 5,6-diamino-4-hydroxy-

5,6-Diamino-4-hydroxy-2-naphthoic acid (CAS 343604-46-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H10N2O3 and a molecular weight of 218.20900 g/mol. It is also known as 5,6-diamino-4-hydroxynaphthalene-2-carboxylic acid and 2-Naphthalenecarboxylic acid, 5,6-diamino-4-hydroxy-. Key properties include a boiling point of 551.005ºC at 760 mmHg, a density of 1.569g/cm3 and a flash point of 287.038ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
343604-46-6
Jingsj CID
J-1045239-4
Molecular Formula
C11H10N2O3
Chinese Name
5,6-二氨基-4-羟基-2-萘羧酸
Molecular Weight
218.20900 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point551.005ºC at 760 mmHg
Density1.569g/cm3
Flash Point287.038ºC

Frequently Asked Questions

What is the CAS number of 5,6-Diamino-4-hydroxy-2-naphthoic acid?

The CAS number of 5,6-Diamino-4-hydroxy-2-naphthoic acid is 343604-46-6.

What are the molecular formula and molecular weight of 5,6-Diamino-4-hydroxy-2-naphthoic acid?

5,6-Diamino-4-hydroxy-2-naphthoic acid has molecular formula C11H10N2O3 and molecular weight 218.20900 g/mol.

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

Last updated:

How to cite: Jingsj. "5,6-Diamino-4-hydroxy-2-naphthoic acid (CAS 343604-46-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1045239-4 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.