21 CFR 74.1707 - D&C Yellow No. 7.
(1) The color additive D&C Yellow No. 7 is principally fluorescein.
(2) Color additive mixtures for use in externally applied drugs made with D&C Yellow No. 7 may contain only those diluents that are suitable and that are listed in part 73 of this chapter for use in color additive mixtures for coloring externally applied drugs.
(b)Specifications. D&C Yellow No. 7 shall conform to the following specifications and shall be free from impurities other than those named to the extent that such impurities may be avoided by good manufacturing practice:
(c)Uses and restrictions. D&C Yellow No. 7 may be safely used in externally applied drugs in amounts consistent with good manufacturing practice.