CFR › Title 21 › Part 182 › §182.821721 CFR §182.8217Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Product. Calcium phosphate (mono-, di-, and tribasic).(b)Conditions of use. This substance is generally recognized as safe when used in accordance with good manufacturing practice.