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Martius Yellow

Martius Yellow

Class: Nitro
Ionisation: Acid

Chemical structure of Martius Yellow

Common Name: Martius yellow
Suggested Name: Martius yellow
Other Names:

Naphthol yellow

C.I. Number: 10315
C.I. Name: Acid yellow 24
Color: Yellow
Solubility Aqueous: 4.60%
Solubility Ethanol: 4.60%
Absorption Maximum: 445 (Conn), 420 (Gurr) 435 (Aldrich)
Empirical Formula: (O2N)2C10H5OH
Formula Weight: 234.174


Ethanol solutions of martius yellow have been used to stain erythrocytes yellow, so they contrast well with red fibrin, in trichrome methods such as Lendrum's Picro Mallory and Slidder's Martius, Scarlet, and Blue (MSB). It can be combined with other small molecular weight yellow dyes to increase stain intensity.

The sodium salt of martius yellow is the dye Manchester yellow with an absorption maximum of 432 (Aldrich).


  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.