Sirius Scarlet GG
There has been little use of this dye in histology. It was suggested by Puchtler, Sweat and Kuhns as a possible substitute for congo red in amyloid staining, but although it is quite satisfactory for that purpose it is not popular.
Compare this dye to other direct cotton dyes for amyloid.
Colour Index, Ed. 2. (1956)
Society of dyers and colourists, UK.
Putchler, H., Sweat, F. & Kuhns, J. G., (1964),
On the binding of direct cotton dyes by amyloid.
Journal of Histochemistry and Cytochemistry, v. 12, page 900.