Chromotrope 2R

Property Data Common name Suggested name Other names C.I. number C.I. name Class Ionisation Solubility aqueous Solubility ethanol Absorption maximum   Colour Empirical formula Formula weight Chromotrope 2R Chromotrope 2R Carmoisine 6R 16570 Acid red 29 Azo Acid 19.3% 0.17% 503, 542 (Conn) 510, 530 (Aldrich) Red C16H10N2O8S2Na2 468.386

Chromotrope 2R may be used as the plasma stain in trichrome techniques, most notably in Gomori's one-step method. It can replace xylidine ponceau in Masson's trichrome.

 

Reference
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.

Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA.