Synonyms: Benzoicacid, 3,4,5-trimethoxy-, 2,5-dihydro-4-(3-oxobutyl)-1,2-diphenyl-5-oxo-1H-pyrazol-3-ylester (9CI); Benzoic acid, 3,4,5-trimethoxy-, ester with3-hydroxy-4-(3-oxobutyl)-1,2-diphenyl-3-pyrazolin-5-one (8CI);3-Pyrazolin-5-one, 3-hydroxy-4-(3-oxobutyl)-1,2-diphenyl-,3,4,5-trimethoxybenzoate (ester); Ketophenylbutazone trimethoxybenzoate