Hypromellose Acetate Succinate and its Impurities

Hypromellose Acetate Succinate is used to relieve dryness and irritation caused by reduced tear flow. It is a semisynthetic, inert, viscoelastic polymer.Reference standards of Hypromellose Acetate Succinate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.