Reactive Black 31
活性黑 RL
Also known as: C.I.Reactive Black 31, C.I. Reaction Black 31, Diarnira Grey RLN, Navictive Black RL, Reactofix Supra Black HRL, Remazol Black RL, Dinazol Black RL, Indofix Black VRI, Vipazol Black HR, Duasyn Black KRL-SF, Duasyn Black RL-SF-VP 228
Reactive Black 31 (CAS 12731-63-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C29H20N6O17S4.4Na and a molecular weight of 944.73 g/mol. It is also known as C.I.Reactive Black 31, C.I. Reaction Black 31 and Diarnira Grey RLN. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 12731-63-4
- Jingsj CID
- J-1373135-3
- Molecular Formula
- C29H20N6O17S44Na
- Chinese Name
- 活性黑 RL
- Molecular Weight
- 944.73 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of Reactive Black 31?
The CAS number of Reactive Black 31 is 12731-63-4.
What are the molecular formula and molecular weight of Reactive Black 31?
Reactive Black 31 has molecular formula C29H20N6O17S4.4Na and molecular weight 944.73 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Reactive Black 31 (CAS 12731-63-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1373135-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.