Martius yellow
Encyclopedia
Martius yellow is a compound with formula
C10H6N2O5. It is a dye
.
Martius yellow stains 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.
Synthesis: can be obtained by sulphonating in concentrated sulfuric acid (98%) and later nitration in nitric acid of p-naphtol, but never in a mix of both acids or direct nitration, or else the aromatic ring will break.
C10H6N2O5. It is a dye
Dye
A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber....
.
Martius yellow stains 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.
Synthesis: can be obtained by sulphonating in concentrated sulfuric acid (98%) and later nitration in nitric acid of p-naphtol, but never in a mix of both acids or direct nitration, or else the aromatic ring will break.