2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2)
酸性紫13
Also known as: Acid Violet 13, C.I. 16640, Pontacyl Violet 6R, 4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid disodium salt, Chromotrope 10B, C.I. Acid Violet 13
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2) (CAS 5850-63-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H12N2Na2O8S2 and a molecular weight of 518.42700 g/mol. It is also known as Acid Violet 13, C.I. 16640 and Pontacyl Violet 6R. Key property: a density of 1.69g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5850-63-5
- Jingsj CID
- J-1150707-1
- Molecular Formula
- C20H12N2Na2O8S2
- Chinese Name
- 酸性紫13
- Molecular Weight
- 518.42700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.69g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2)?
The CAS number of 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2) is 5850-63-5.
What are the molecular formula and molecular weight of 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2)?
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2) has molecular formula C20H12N2Na2O8S2 and molecular weight 518.42700 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, sodium salt (1:2) (CAS 5850-63-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1150707-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.