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Victoria Blue B

Victoria Blue B

Ionisation: Basic

Chemical structure of Victoria Blue B

Common Name: Victoria blue
Suggested Name: Victoria blue B
Other Names:

C.I. Number: 44045
C.I. Name: Basic blue 26
Color: Blue
Solubility Aqueous:
Solubility Ethanol:
Absorption Maximum: 619.2, 567 (Conn) 599 (Aldrich), 617 (Gurr)
Empirical Formula: C33H32N3Cl
Formula Weight: 506.1


The dyes named victoria blue are all very similar and they are sometimes confused and substituted for each other in staining solutions, often without any difference in the results. Compare this dye to its close relatives, victoria blue R, victoria blue 4R and night blue. If one of these three is required but is unavailable, it is worth trying one of the others as a substitute.


  1. R. D. Lillie.
    Conn’s Biological Stains
    Williams & Wilkins, Baltimore, MD., U.S.A.
  2. Edward Gurr, 1971
    Synthetic dyes in biology, medicine and chemistry
    Academic Press, London, England.
  3. Aldrich chemical catalogue, 1992
    Aldrich Chemical Company, Milwaukee, WI, USA.