APC 366 and its Impurities

Apc 366 a selective inhibitor of mast cell tryptase, has been shown to inhibit antigen-induced early asthmatic response, late asthmatic response, and bronchial hyperresponsiveness in a sheep model of allergic asthma.Reference standards of Apc 366 API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.