Fast Blue B Salt

耐晒兰B盐

Also known as: Azoic Diazo Component 48, CI 37235, 3,3'-Dimethoxybiphenyl-4,4'-bis(diazonium) dichloride, o-Dianisidine diazotate, Tetrazotized-o-dianisidine chloride, Naphthanil Diazo Blue B, Brentamine Fast Blue B Salt

Fast Blue B Salt (CAS 91-91-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H12Cl2N4O2 and a molecular weight of 339.177 g/mol. It is also known as Azoic Diazo Component 48, CI 37235 and 3,3'-Dimethoxybiphenyl-4,4'-bis(diazonium) dichloride. Key property: a melting point of 300ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
91-91-8
Jingsj CID
J-31573-9
Molecular Formula
C14H12Cl2N4O2
Chinese Name
耐晒兰B盐
Molecular Weight
339.177 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300ºC

Frequently Asked Questions

What is the CAS number of Fast Blue B Salt?

The CAS number of Fast Blue B Salt is 91-91-8.

What are the molecular formula and molecular weight of Fast Blue B Salt?

Fast Blue B Salt has molecular formula C14H12Cl2N4O2 and molecular weight 339.177 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Fast Blue B Salt (CAS 91-91-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31573-9 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.