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Malachite Green

Malachite Green

Ionisation: Basic

Chemical structure of Malachite Green

Common Name: Malachite green
Suggested Name: Malachite green
Other Names:

Victoria green B Diamond green B

C.I. Number: 42000
C.I. Name: Basic green 4
Color: Green
Solubility Aqueous: Very
Solubility Ethanol: Very
Absorption Maximum: 617-619, 425 (Conn) 614, 425 (Aldrich) 618 (Gurr)
Empirical Formula: C23H25N2Cl
Formula Weight: 365


Malachite green is rarely specified in histotechnology. It can be used in a method for differentiating DNA and RNA analagous to the Pappenheim stain, in which it replaces methyl green and stains DNA.

Compare this dye to methyl green.


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