Acid Blue 40

酸性蓝40

Also known as: Acid Blue 40, C.I. Acid Blue 40, CI 62125, Acid Blue A 2G, Acid Blue AGG, Acid Blue E 2G, Tectilon Blue, Blue A2G, 4-[[4-(acetylamino)phenyl]amino]-1-amino-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid sodium salt

Acid Blue 40 (CAS 6424-85-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H16N3NaO6S and a molecular weight of 473.43400 g/mol. It is also known as C.I. Acid Blue 40, CI 62125 and Acid Blue A 2G. Key property: a melting point of 129-132 °C(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6424-85-7
Jingsj CID
J-6164-7
Molecular Formula
C22H16N3NaO6S
Chinese Name
酸性蓝40
Molecular Weight
473.43400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point129-132 °C(lit.)

Frequently Asked Questions

What is the CAS number of Acid Blue 40?

The CAS number of Acid Blue 40 is 6424-85-7.

What are the molecular formula and molecular weight of Acid Blue 40?

Acid Blue 40 has molecular formula C22H16N3NaO6S and molecular weight 473.43400 g/mol.

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

Last updated:

How to cite: Jingsj. "Acid Blue 40 (CAS 6424-85-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6164-7 (accessed 2026-10-22).

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