Acid Red 137
酸性红137
Also known as: Acid Red 137, C.I. 17755, C.I. Acid Red 137, Scarlet A, Blackley Fast Paper Scarlet N, sodium 7-(acetylamino)-3-[[4-(acetylamino)phenyl]azo]-4-hydroxynaphthalene-2-sulphonate, 2-Naphthalenesulfonic acid, 7-(acetylamino)-3-[2-[4-(acetylamino)phenyl]diazenyl]-4-hydroxy-, sodium salt (1:1)
Acid Red 137 (CAS 6222-63-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H18N4NaO6S+ and a molecular weight of 465.43500 g/mol. It is also known as C.I. 17755, C.I. Acid Red 137 and Scarlet A. Key property: a density of 1.49 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6222-63-5
- Jingsj CID
- J-1371738-0
- Molecular Formula
- C20H18N4NaO6S
- Chinese Name
- 酸性红137
- Molecular Weight
- 465.43500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.49 g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of Acid Red 137?
The CAS number of Acid Red 137 is 6222-63-5.
What are the molecular formula and molecular weight of Acid Red 137?
Acid Red 137 has molecular formula C20H18N4NaO6S+ and molecular weight 465.43500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Acid Red 137 (CAS 6222-63-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1371738-0 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.