Fast Red B

Property Data
Common name
Suggested name
Other names
C.I. number
C.I. name
Class
Ionisation
Solubility aqueous
Solubility ethanol
Absorption maximum
Colour
Empirical formula
Formula weight
Fast red B
Fast red B
Fast red salt B
37125
Azoic diazo 5
Diazonium salt

20%

375
Yellow
C17H13N3O9S2
467.4

Fast red B is a diazonium salt often recommended for demostrating enterochromaffin in carcinoid tumours. During the coupling process an azo dye is formed which is red-orange.

 

Reference
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.

Burstone, M.S.
Enzyme Histochemistry and its application to the study of neoplasms
Academic Press, New York, NY, USA

Edward Gurr, (1971)
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England.

 


 

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