Alkali Blue 4B
Also known as: Alkali Blue 6B, C.I. Acid Blue 110, C.I. Alkali Blue 4B, Alkali blue 4B (C.I. 42750), sodium 2-[[4-[(4-amino-3-methyl-phenyl)-(4-anilinophenyl)-hydroxy-methyl]phenyl]amino]benzenesulfonate, Benzenesulfonic acid, ((4-((4-amino-3-methylphenyl)hydroxy(4-(phenylamino)phenyl)methyl)phenyl)amino)-, sodium salt (1:1), Alkali Blue Indicator, alkali6b, alkaliblue6b(c.i.42750)
Alkali Blue 4B (CAS 30586-13-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C38H31N4NaO3S and a molecular weight of 646.73300 g/mol. Key property: a melting point of >250°C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 30586-13-1
- Jingsj CID
- J-1505229-4
- Molecular Formula
- C38H31N4NaO3S
- Molecular Weight
- 646.73300 g/mol
- Category
- Organic Bases
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >250°C |
|---|---|
| Exact Mass | 646.20100 |
| PSA | 128.02000 |
| LogP | 10.47710 |
| Appearance | powder | Dark blue |
| Additional Property | Solubility Sparingly soluble in water; soluble in ethanol |
Frequently Asked Questions
What is the CAS number of Alkali Blue 4B?
The CAS number of Alkali Blue 4B is 30586-13-1.
What are the molecular formula and molecular weight of Alkali Blue 4B?
Alkali Blue 4B has molecular formula C38H31N4NaO3S and molecular weight 646.73300 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. "Alkali Blue 4B (CAS 30586-13-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1505229-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.