How are color additives categorized?
The FD&C Act Section 721(c) [21 U.S. C. 379e(c)] and color additive regulations [21 CFR Parts 70 and 80] separate approved color additives into two main categories: those subject to certification (sometimes called “certifiable”) and those exempt from certification. In addition, the regulations refer to other classifications, such as straight colors and lakes. • Colors subject to certification. These color additives are derived primarily from petroleum and are sometimes known as “coal-tar dyes” or “synthetic-organic” colors. (NOTE: Coal-tar colors are materials consisting of one or more substances that either are made from coal-tar or can be derived from intermediates of the same identity as coal-tar intermediates. They may also include diluents or substrata. (See Federal Register, May 9, 1939, page 1922.) Today, most are made from petroleum.) • Except in the case of coal-tar hair dyes, these colors must not be used unless FDA has certified that the batch in question has passed analysis
