21 CFR § 82.304 - FD&C Red No. 4.
§ 82.304 FD&C Red No. 4.
The color additive FD&C Red No. 4 shall conform in identity and specifications to the requirements of § 74.1304(a)(1) and (b) of this chapter. FD&C Red No. 4 is restricted to use in externally applied drugs and cosmetics.