D & C dyes
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Description
An acronym for Drug and Cosmetic dyes. This classification for synthetic dyes is given by the U.S. Food and Drug Administration. D & C dyes can be used in drugs and cosmetics while a FD & C dyes can be used in food, drugs and cosmetics. This designation certifies that the dye does not contain toxic amounts of heavy metals. Examples are:
D&C Red No. 21 = Eosin;
D&C blue No. 6 = Indigo;
FD&C Red No. 2 = Amaranth.
Resources and Citations
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942