21 CFR § 172.765 - Succistearin (stearoyl propylene glycol hydrogen succinate).

---
identifier: "/us/cfr/t21/s172.765"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 172.765 - Succistearin (stearoyl propylene glycol hydrogen succinate)."
title_number: 21
title_name: "Food and Drugs"
section_number: "172.765"
section_name: "Succistearin (stearoyl propylene glycol hydrogen succinate)."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "FOOD FOR HUMAN CONSUMPTION"
part_number: "172"
part_name: "FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 341, 342, 348, 371, 379e."
regulatory_source: "42 FR 14491, Mar. 15, 1977, unless otherwise noted."
cfr_part: "172"
---


# 172.765 Succistearin (stearoyl propylene glycol hydrogen succinate).

The food additive succistearin (stearoyl propylene glycol hydrogen succinate) may be safely used in food in accordance with the following prescribed conditions:

(a) The additive is the reaction product of succinic anhydride, fully hydrogenated vegetable oil (predominantly C<sub>16</sub> or C<sub>18</sub> 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.