Reactive Red 21

活性红21

Also known as: C.I.Reactive Red 21, Reactive Red 21 (Remazol Red BB), ReactiveBrilliantRedBB, Remazol Brilliant Red BB

Reactive Red 21 (CAS 11099-79-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C26H19N4Na3O15S4 and a molecular weight of 824.68 g/mol. It is also known as C.I.Reactive Red 21, Reactive Red 21 (Remazol Red BB) and ReactiveBrilliantRedBB. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
11099-79-9
Jingsj CID
J-1823418-7
Molecular Formula
C26H19N4Na3O15S4
Chinese Name
活性红21
Molecular Weight
824.68 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Reactive Red 21?

The CAS number of Reactive Red 21 is 11099-79-9.

What are the molecular formula and molecular weight of Reactive Red 21?

Reactive Red 21 has molecular formula C26H19N4Na3O15S4 and molecular weight 824.68 g/mol.

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

Last updated:

How to cite: Jingsj. "Reactive Red 21 (CAS 11099-79-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1823418-7 (accessed 2026-10-26).

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