9-FLUORENONE-2,7-DISULFONIC ACID DIPOTASSIUM SALT
FLUORENONE-2,7-DISULFONIC ACID, POTASSIUM SALT;9-FLUORENONE-2,7-DISULFONIC ACID, DIK;9-FLUORENONE-2,7-DISULFONIC ACID DIPOTASSIUM SALT;9-FLUORENONE-2,7-DISULPHONIC ACID DIPOTASSIUM SALT;9-Oxo-9H-fluorene-2,7-disulfonic acid dipotassium salt