Acid Brown 21

酸性棕21

Also known as: C.I. Acid Brown 21, Neutral Dark Brown Brl, Brown BRL, Neuter Brown BRL, Acide Brown 21, Säure Brown 21, C.I.Acid Black 21

Acid Brown 21 (CAS 61724-04-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H18N4O5S and a molecular weight of 630.752 g/mol. It is also known as C.I. Acid Brown 21, Neutral Dark Brown Brl and Brown BRL. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
61724-04-7
Jingsj CID
J-1530336-1
Molecular Formula
C19H18N4O5S
Chinese Name
酸性棕21
Molecular Weight
630.752 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Acid Brown 21?

The CAS number of Acid Brown 21 is 61724-04-7.

What are the molecular formula and molecular weight of Acid Brown 21?

Acid Brown 21 has molecular formula C19H18N4O5S and molecular weight 630.752 g/mol.

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

Last updated:

How to cite: Jingsj. "Acid Brown 21 (CAS 61724-04-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1530336-1 (accessed 2026-10-25).

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