Chromotropic acid

变色酸

Also known as: 1,8-Dihydroxynaphthalene-3,6-disulfonic acid, 4,5-Dihydroxy-2,7-naphthalenedisulfonic acid, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid, 1,8-Dihydroxynaphthylene-3,6-disulfonic acid

Chromotropic acid (CAS 148-25-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8O8S2 and a molecular weight of 320.296 g/mol. It is also known as 1,8-Dihydroxynaphthalene-3,6-disulfonic acid, 4,5-Dihydroxy-2,7-naphthalenedisulfonic acid and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid. Key property: a density of 1.9±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
148-25-4
Jingsj CID
J-26798-2
Molecular Formula
C10H8O8S2
Chinese Name
变色酸
Molecular Weight
320.296 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.9±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of Chromotropic acid?

The CAS number of Chromotropic acid is 148-25-4.

What are the molecular formula and molecular weight of Chromotropic acid?

Chromotropic acid has molecular formula C10H8O8S2 and molecular weight 320.296 g/mol.

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

Last updated:

How to cite: Jingsj. "Chromotropic acid (CAS 148-25-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26798-2 (accessed 2026-10-23).

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