EPO0240005
Oxolinic acid impurity A - 8-hydroxy-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid
EPO0240010
Oxolinic acid impurity B - ethyl 5-ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylate
Oxolinic acid impurity A - 8-hydroxy-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid
Oxolinic acid impurity B - ethyl 5-ethyl-8-oxo-5,8-dihydro-1,3-dioxolo[4,5-g]quinoline-7-carboxylate