Martius Yellow Powder


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Martius yellow stains have been used to stain erythrocytes yellow so that they contrast well with red fibrin in trichrome staining 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

  • Biological Stain
  • Examination of Fibrin

C.I. 10315

Molecular Formula: C10H6N2O5 
Molecular Weight: 234.17 
Melting Point: 140°C
Loss on Drying: <8%
Solubility: Soluble in Ethanol/Methanol


E(370+ 3)nm =   6,000 minimum (C = 0.01 g/l in Methanol)                            
E(293+ 3)nm =   9,000 minimum
E(249+ 3)nm = 14,000 minimum

Hazard Phrases: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Prec Phrases: Avoid breathing dust/fume/gas/mist/vapours/spray. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Cas No: 605-69-6
Einecs No: 210-093-1


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