Common Name: Fast blue salt B
Suggested Name: Fast blue salt B
Other Names:
–
C.I. Number: 37235
C.I. Name: Azoic diazo 48
Color: Yellow
Solubility Aqueous: 10%
Solubility Ethanol: 10%
Absorption Maximum: 371
Empirical Formula: –
Formula Weight: 475.49
Description
Fast blue salt B is a diazonium salt which has been recommended as a coupling agent in a technique which demonstrates aldehydes. 2-hydroxy-3-naphthoic hydrazine is applied to sections in which aldehydes have been generated by some means. The resulting complex then reacts with fast blue salt B forming a blue violet azo dye.
Do not confuse with the textile dye fast blue B (CI 63010, acid blue 45).
References
- R. D. Lillie.
Conn’s Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A. - Culling C.F.A.,
Handbook of histopathological and histochemical techniques Ed. 3
Butterworth, London, UK. - Burstone, M.S.
Enzyme Histochemistry and its application to the study of neoplasms
Academic Press, New York, NY, USA
