Pontamine Sky Blue 5B

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
Pontamine sky blue
Pontamine sky blue 5B
Chicago blue 4B


Azo
Acid
Readily
Poorly
588 (Gurr)
Blue
C34H24N6O16S4Na4
993

A large molecular weight dye named pontamine sky blue was suggested as a substitute for methyl blue in Lendrum’s MSB technique for fibrin. It is likely this dye, but positive identification is not possible as a CI number was not given. It was recommended with a comment that its use reduced the tendency of some fibrin to stain with the blue dye.

 

Reference

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

Bancroft, J.D. and Stevens A. (1982)
Theory and practice of histological techniques Ed. 2
Churchill Livingstone, Edinburgh & London, UK.

 


 

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