acetin

noun

ac·​e·​tin ˈas-ət-ən 

: any of three liquid acetates formed when glycerol and acetic acid are heated together:

a

: one C₃H₅(OH)₂C₂H₃O₂ containing only one acetate group that is used chiefly in the manufacture of explosives

called also monoacetin

b

: one C₃H₅(OH)(C₂H₃O₂)₂ containing two acetate groups that is used chiefly as a plasticizer and solvent

called also diacetin

c

: one C₃H₅(C₂H₃O₂)₃ containing three acetate groups that is used chiefly as a plasticizer and solvent and as a fixative in perfumes

called also triacetin