Names and synonyms
USP NF Name
Hard fat
EP Name
Hard fat with additive
UNII Code (FDA)
14BGY2Y3MJ
Preferred Substance Name (FDA)
Handbook of Pharmaceutical Excipients
Suppository bases, hard fat
Chemical description
Consists of mono-, di- and triglyceride esters of fatty acids (C10 to C18), the triester fraction being predominant and containing polysorbate 65
Key characteristics
Product form
Pellets
Melting range (°C)
35-39
Hydroxyl value (mg KOH/g)
15-25
Main functionalities
Facilitates dispersion of hydrophilic APIs. Prevents the exudation of APIs.
Main formulation technologies
