Stilbazo
Also known as: Stilbazo, Stilbene-4,4'-bis[(1-azo)-3,4-dihydroxybenzene]-2,2'-disulfonic acid diammonium salt, Diammonium 4,4'-bis[(3,4-dihydroxyphenyl)azo]stilbene-2,2'-disulphonate, Benzenesulfonic acid, 2,2'-[(E)-1,2-ethenediyl]bis[5-[(E)-2-(3,4-dihydroxyphenyl)diazenyl]-, diammonium salt, 4,4''-Bis-(3,4-dihydroxyphenylazo)-2,2''-stilbenedisulfonic acid diammonium salt, Stilbazo [Spectrophotometric reagent for Al and other metals]
Stilbazo (CAS 1571-36-4) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C26H26N6O10S2 and a molecular weight of 646.649 g/mol. Key properties include a melting point of 77-81 °C and a density of 1.72 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1571-36-4
- Jingsj CID
- J-36376-5
- Molecular Formula
- C26H26N6O10S2
- Molecular Weight
- 646.649 g/mol
- Category
- Nitrogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 77-81 °C |
|---|---|
| Density | 1.72 g/cm3 |
| Exact Mass | 646.115173 |
| PSA | 262.34000 |
| LogP | 8.81300 |
| Refractive Index | 1.767 |
Frequently Asked Questions
What is the CAS number of Stilbazo?
The CAS number of Stilbazo is 1571-36-4.
What are the molecular formula and molecular weight of Stilbazo?
Stilbazo has molecular formula C26H26N6O10S2 and molecular weight 646.649 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Stilbazo (CAS 1571-36-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36376-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.