21 C.F.R. § 82.1104
D&C Blue No. 4.
Cite as 21 C.F.R. § 82.1104 (2026)
The color additive D&C Blue No. 4 shall conform in identity and specifications to the requirements of § 74.1104(a)(1) and (b) of this chapter. D&C Blue No. 4 is restricted to use in externally applied drugs and cosmetics.
- Cross-references to the CFR
- 74.1104