| Synonyms: | Tetrabenazine Related Impurity 3;3-butyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydrobenzo[a]quinolizin-2-one;3-Des(2-methylpropyl)-3-n-Butyl Tetrabenazine;Tetrabenazine 3-n-Butyl;3-Butyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-one;Tetrabenazine Impurity 4;TetrabezineRelatedImpurity3;2H-Benzo[a]quinolizin-2-one, 3-butyl-1,3,4,6,7,11b-hexahydro-9,10-dimethoxy- |