Fay, Irving W. (Irving Wetherbee), 1861-1936 · New York, D. Van Nostrand Co. · leaf 88
remaining hydrogen atom. This single atom of carbon is called the methane carbon, since it is the nucleus of the molecule and because the whole complex molecule may be regarded as a molecule of methane in which the four hydrogen atoms have been replaced by the larger groups of atoms now attached to… … Triphenylmethane Pararosaniline (colorless) The function of the methane carbon atom is here clearly shown and the three amino groups are not only affixed to separate benzene rings, but they occupy similar positions, and these are all upon the extreme ends of the benzene rings opposite to that where…
Coal-tar colors · Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
