21 C.F.R. § 172.190 THBP.
Title 21 - Food and Drugs
The food additive THBP (2,4,5-trihydroxybutyrophenone) may be safely used in food in accordance with the following prescribed conditions: (a) The food additive has a melting point of 149 °C–153 °C. (b) It is used as an antioxidant alone or in combination with other permitted antioxidants. (c) The total antioxidant content of a food containing the additive will not exceed 0.02 percent of the oil or fat content of the food, including the essential (volatile) oil content of the food.
Title 21: Food and Drugs
PART 172—FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION
Subpart B—Food Preservatives
§ 172.190 THBP.
