{"data":{"id":"us/21-cfr-73.1001","jurisdiction":"us","citation":"21 CFR 73.1001","heading":"Diluents in color additive mixtures for drug use exempt from certification.","body":"The following diluents may be safely used in color additive mixtures that are exempt from certification and which are to be used for coloring drugs, subject to the condition that each straight color in the mixture has been exempted from certification or, if not so exempted, is from a batch that has previously been certified and has not changed in composition since certification. Such listing of diluents is not to be construed as superseding any of the other requirements of the Federal Food, Drug, and Cosmetic Act with respect to drugs, including new drugs. If a definition and specification for a particular diluent is not set forth in this subpart, the material shall be of a purity consistent with its intended use.\n(a) Ingested drugs—(1) General use. Diluents listed in § 73.1(a) and the following:\nSubstances Definitions and specifications Restrictions\nAlcohol, specially denatured As set forth in 26 CFR, pt. 212 As set forth in 26 CFR, pt. 211.\nCetyl alcohol As set forth in N.F. XI\nIsopropyl alcohol In color coatings for pharmaceutical forms, no residue.\nPolyoxyethylene (20) sorbitan monostearate (Polysorbate 60) As set forth in sec. 172.836 of this chapter\nPolyoxyethylene (20) sorbitan tristearate (Polysorbate 65) As set forth in sec. 172.838 of this chapter\nPolysorbate 80 As set forth in sec. 172.840 of this chapter\nPolyvinyl-pyrrolidone As set forth in sec. 173.55 of this chapter\nSorbitan monooleate\nSorbitan monostearate As set forth in sec. 172.842 of this chapter\nSorbitan trioleate\n(2) Special use; inks for branding pharmaceutical forms. Items listed in paragraph (a)(1) of this section, § 73.1(b)(1)(i), and the following:\nEthyl lactate\nPolyoxyethylene sorbitan monolaurate (20)\n(b) Externally applied drugs. Diluents listed in paragraph (a)(1) of this section and the following:\nSubstances Definitions and specifications\nBenzyl alcohol As set forth in N.F. XI.\nEthyl cellulose As set forth in § 172.868 of this chapter.\nHydroxyethyl cellulose\nHydroxypropyl cellulose As set forth in § 172.870 of this chapter.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER A—GENERAL","PART 73—LISTING OF COLOR ADDITIVES EXEMPT FROM CERTIFICATION","Subpart B—Drugs"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"c4f3b17e8911278e3bd42fc71d294b42767538f10a20c120d9d8ea9d17dcf616","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-73.615","next":"us/21-cfr-73.1010"},"notice":"GroundRules: Original legal text. Not legal advice."}