Code of Federal Regulations Title 21. Food and Drugs § 21.172.765 Succistearin (stearoyl propylene glycol hydrogen succinate)

(a) The additive is the reaction product of succinic anhydride, fully hydrogenated vegetable oil (predominantly C₁₆ or C₁₈ fatty acid chain length), and propylene glycol.

(b) The additive meets the following specifications:

Acid number 50–150.

Hydroxyl number 15–50.

Succinated ester content 45–75 percent.

(c) The additive is used or intended for use as an emulsifier in or with shortenings and edible oils intended for use in cakes, cake mixes, fillings, icings, pastries, and toppings, in accordance with good manufacturing practice.