Fay, Irving W. (Irving Wetherbee), 1861-1936 · New York, D. Van Nostrand Co. · leaf 97
e. New fuchsine is pararosaniline enriched by three methyl groups, and it retains its red color; Hoffman's violet is para- rosaniline enriched with three methyl groups, and it is violet. The difference lies in the position of the three methyl groups in the two dyes. In Hoffman's violet they are… … New fuchsine
Coal-tar colors · Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
