Diacetylated Monoglycerides
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Tóm tắt nội dung
This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
1 DEFINITION
Diacetylated Monoglycerides is Glycerin esterified with edible fat-forming fatty acids and acetic acid. It may be prepared by the interesterification of edible oils with triacetin in the presence of catalytic agents, followed by molecular distillation, or by the direct acetylation of edible monoglycerides with acetic anhydride without the use of catalyst or molecular distillation.
2 IDENTIFICATION
Change to read:
A. SPECTROSCOPIC IDENTIFICATION TESTS (197), Infrared Spectroscopy: 197F (CN 1-MAY-2020)
Sample: Undried specimen
Acceptance criteria: Meet the requirements
3 IMPURITIES
RESIDUE ON IGNITION (281): NMT 0.1%
SPECIFIC TESTS
FATS AND FIXED OILS, Acid Value (401): NMT 3
FATS AND FIXED OILS, Hydroxyl Value (401): NMT 15
FATS AND FIXED OILS, Saponification Value (401): 365-395
4 ADDITIONAL REQUIREMENTS
PACKAGING AND STORAGE: Preserve in tight, light-resistant containers.
USP REFERENCE STANDARDS (11)
USP Diacetylated Monoglycerides RS
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