Common Name: Pontamine sky blue
Suggested Name: Pontamine sky blue 5B
Other Names:
Chicago blue 4B
C.I. Number: –
C.I. Name: –
Color: Blue
Solubility Aqueous: Readily
Solubility Ethanol: Readily
Absorption Maximum: 588 (Gurr)
Empirical Formula: C34H24N6O16S4Na4
Formula Weight: 993
Description
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.
References
- Edward Gurr, 1971
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England. - Bancroft, J.D. and Stevens A.
Theory and practice of histological techniques Ed. 2
Churchill Livingstone, Edinburgh & London, UK.
