Growth of Synthetic Color

A chart published by the International Printing Ink Corporation shows some of the major dyes developed up to 1930. Today, some 8,000 colorants with more than 40,000 trade names are used.

Source: Chemical compound, Encyclopedia Britannica. 2007 Interchemical Corporation and Research Laboratories.

image from color chemistry
Color Chemistry: Number One of a Series of Monographs on Color. New York: Research Laboratories of the International Printing Ink Corp. and subsidiary companies, 1935. QC A95.I6 no.1 Crerar Library