U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 21Chapter IPart 189Subpart C - Subpart C—Substances Generally Prohibited From Direct Addition or Use as Human Food
§ 189.110 - Calamus and its derivatives.
§ 189.113 - Cinnamyl anthranilate.
§ 189.120 - Cobaltous salts and its derivatives.
§ 189.130 - Coumarin.
§ 189.135 - Cyclamate and its derivatives.
§ 189.140 - Diethylpyrocarbonate (DEPC).
§ 189.145 - Dulcin.
§ 189.155 - Monochloroacetic acid.
§ 189.165 - Nordihydroguaiaretic acid (NDGA).
§ 189.175 - P-4000.
§ 189.180 - Safrole.
§ 189.190 - Thiourea.
§ 189.191 - Chlorofluorocarbon propellants.
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