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Durazol Blue 8G

Durazol Blue 8G

Ionisation: Acid

Chemical structure of Durazol Blue 8G

Common Name: Durazol blue
Suggested Name: Durazol blue 8G
Other Names:

C.I. Number:
C.I. Name:
Color: Blue
Solubility Aqueous: Readily
Solubility Ethanol: Readily
Absorption Maximum: 617 (Gurr)
Empirical Formula: C32H14N8O6S2Na2Cu
Formula Weight: 780


A dye named durazol blue has been suggested as a replacement for methyl blue in Lendrum’s MSB. It is unlikely to be this dye, and more likely to be another one named durazol blue 4R. Unfortunately, the dye named was not specifically identified and it is not clear which one is meant.

Compare the formula with other phthalocyanines.


  1. Edward Gurr, 1971
    Synthetic dyes in biology, medicine and chemistry
    Academic Press, London, England.
  2. Bancroft, J.D. and Stevens A.
    Theory and practice of histological techniques Ed. 2
    Churchill Livingstone, Edinburgh & London, UK.