57363-13-0 Droxacin sodium Furo[2,3-g]quinoline-7-carboxylic acid, 5-ethyl-2,3,5,8-tetrahydro-8-oxo-, sodium salt NSC356041 SH 263 Sodium 5-ethyl-2,3,5,8-tetrahydro-8-oxofuro[2,3-g]quinoline-7-carboxylate