Acid alizarin black SN
酸性茜素黑SN
Also known as: Mordant Black 25, C.I. 21725, C.I. Mordant Black 25, Acid Alizarine Black, disodium 6-hydroxy-5-[[2-hydroxy-3-[(2-hydroxynaphthyl)azo]-5-sulphonatophenyl]azo]naphthalene-2-sulphonate, 2-Naphthalenesulfonic acid, 6-hydroxy-5-[[2-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]-5-sulfophenyl]azo]-, disodium salt, EINECS 221-858-4
Acid alizarin black SN (CAS 3258-74-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C26H16N4Na2O9S2 and a molecular weight of 638.53600 g/mol. It is also known as Mordant Black 25, C.I. 21725 and C.I. Mordant Black 25. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3258-74-0
- Jingsj CID
- J-44248-2
- Molecular Formula
- C26H16N4Na2O9S2
- Chinese Name
- 酸性茜素黑SN
- Molecular Weight
- 638.53600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of Acid alizarin black SN?
The CAS number of Acid alizarin black SN is 3258-74-0.
What are the molecular formula and molecular weight of Acid alizarin black SN?
Acid alizarin black SN has molecular formula C26H16N4Na2O9S2 and molecular weight 638.53600 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Acid alizarin black SN (CAS 3258-74-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44248-2 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.