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Metanil Yellow

Dye

Metanil Yellow

Class: Azo
Ionisation: Acid

Chemical structure of Metanil Yellow

Common Name: Metanil yellow
Suggested Name: Metanil yellow
Other Names:

Tropaeolin G

C.I. Number: 13065
C.I. Name: Acid yellow 36
Color: Yellow
Solubility Aqueous: 5.40%
Solubility Ethanol: 5.40%
Absorption Maximum: 536 (Conn), 435 (Gurr), 414 (Aldrich)
Empirical Formula: C18H14N3O3SNa
Formula Weight: 375.391

Description

Metanil yellow was used in one variant of Masson's trichrome to stain collagen yellow in contrast to the red muscle, but is not in common use.

References

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