Direct Scarlet B
直接猩红B
Also known as: 1,3-Naphthalenedisulfonic acid, 8-[[4'-[(4-ethoxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxy-, disodium salt, C.I. Direct Red 37, C.I. 22240, Amidine Scarlet B, Chloramine Red B, Diamine Scarlet B, Diamine Scarlet BA-CF, Direct Fast Scarlet B, Direct Red 37, Pontamine Scarlet B, direct scarlet b, directscarlet, EINECS 222-560-7
Direct Scarlet B (CAS 3530-19-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C30H22N4Na2O8S2 and a molecular weight of 676.62700 g/mol. It is also known as 1,3-Naphthalenedisulfonic acid, 8-[[4'-[(4-ethoxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxy-, disodium salt, C.I. Direct Red 37 and C.I. 22240. Key property: a density of 1.47 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3530-19-6
- Jingsj CID
- J-1021404-2
- Molecular Formula
- C30H22N4Na2O8S2
- Chinese Name
- 直接猩红B
- Molecular Weight
- 676.62700 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.47 g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of Direct Scarlet B?
The CAS number of Direct Scarlet B is 3530-19-6.
What are the molecular formula and molecular weight of Direct Scarlet B?
Direct Scarlet B has molecular formula C30H22N4Na2O8S2 and molecular weight 676.62700 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Direct Scarlet B (CAS 3530-19-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1021404-2 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.