3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid
酸性媒介黑2B
Also known as: Mordant Black 11, free acid, C.I. Mordant Black 11, Mordantblank2B, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitro-4-naphthalenesulfonic acid, 3-Hydroxy-4-[(1-hydroxy-2-naphthyl)azo]-7-nitro-1-naphthalenesulfonic acid, EINECS 247-237-8
3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid (CAS 25747-08-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H13N3O7S and a molecular weight of 439.39800 g/mol. It is also known as Mordant Black 11, free acid, C.I. Mordant Black 11 and Mordantblank2B. Key property: a density of 1.64g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25747-08-4
- Jingsj CID
- J-6465-1
- Molecular Formula
- C20H13N3O7S
- Chinese Name
- 酸性媒介黑2B
- Molecular Weight
- 439.39800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.64g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of 3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid?
The CAS number of 3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid is 25747-08-4.
What are the molecular formula and molecular weight of 3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid?
3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid has molecular formula C20H13N3O7S and molecular weight 439.39800 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid (CAS 25747-08-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6465-1 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.