CAS Registry Number

CAS 14263-94-6 — Fast Blue B salt

Fast Blue B salt is a diazonium dye used primarily in histochemistry and immunohistochemistry for staining proteins, particularly in tissue samples. It reacts with aromatic amines and tyrosine residues, forming azo dyes for microscopic visualization. This chemical has a CAS number of 14263-94-6, a molecular formula of C14H12Cl4N4O2Zn, and a molecular weight of 475.47. It must be stored between 2 to 8 degrees Celsius and carries a **Danger** signal word for toxicity and environmental hazards. Molekula supplies Fast Blue B salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.