Fast Blue B Salt

About Fast Blue B Salt

Fast Blue B Salt is a biological stain (Microbiology grade) carrying the CAS registry number 14263-94-6. With the molecular formula C14H12Cl4N4O2Zn, it has a molar mass of 475.5 g/mol. Its systematic (IUPAC) name is zinc, 4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium. Tetrachloride. Common synonyms include Azoic Diazo No. 48 and DBB.

It is supplied as a yellow to brown powder. Reported physical data include a melting point of above 300 °C. Keep the container tightly sealed and store it in a cool, dry area. Good laboratory practice and suitable PPE are recommended during handling.

Key uses span histology and cytology staining, microscopy, clinical laboratories and protein and peptide research. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Available in 25 g, 100 g, 500 g and 1 kg packs, Fast Blue B Salt is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Protein & peptide research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Fast Blue B Salt
Catalogue No.	VQ-000574
CAS Number	14263-94-6
IUPAC name	zinc;4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium;tetrachloride
Molecular formula	C₁₄H₁₂Cl₄N₄O₂Zn
Molecular weight	475.5 g/mol
Exact mass	473.8976
Grade	Microbiology
HSN code	32041947
InChIKey	GPPKNJIWDULNQH-UHFFFAOYSA-J
SMILES	COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]#N)OC)[N+]#N.[Cl-].[Cl-].[Cl-].[Cl-].[Zn+2]
PubChem CID	84305

Physical properties
Physical form	Powder
Appearance	Yellow to brown powder
Melting point	>300 °C
H-bond donors / acceptors	0 / 8
TPSA	74.8 Å²
Synonyms	o-Dianisidine bis(diazotized) zinc double salt, Azoic Diazo No. 48, DBB, Diazo Blue B, Naphthanil Diazo Blue B, 3,3'-Dimethoxy(1,1'-biphenyl)-4,4'-bis(diazonium) dichloride, compound with zinc chloride, Fast Blue Salt B, (1,1'-Biphenyl)-4,4'-bis(diazonium), 3,3'-dimethoxy-, (T-4)-tetrachlorozincate(2-) (1:1), [1,1'-Biphenyl]-4,4'-bis(diazonium), 3,3'-dimethoxy-, (T-4)-tetrachlorozincate(2-) (1:1), Azoic diazo 48, C14H12Cl4N4O2Zn, (3,3-Dimethoxy(1,1-biphenyl)-4,4'-diyl)bisbenzenediazonium, dichloride, zinc chloride

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Fast Blue B Salt?

The CAS Registry Number of Fast Blue B Salt is 14263-94-6. It is also known as o-Dianisidine bis(diazotized) zinc double salt, Azoic Diazo No. 48, DBB.

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

Fast Blue B Salt has the molecular formula C14H12Cl4N4O2Zn and a molecular weight of 475.5 g/mol.

Which grade and pack sizes of Fast Blue B Salt can I order?

We supply Fast Blue B Salt in Microbiology grade, in 25 g, 100 g, 500 g, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Fast Blue B Salt?

Yes. Every lot of Fast Blue B Salt is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Fast Blue B Salt be shipped internationally?

Yes. We export Fast Blue B Salt worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.