2-Chloro-9-hydroxyfluorene-9-carboxylic acid 2464-37-1 9H-Fluorene-9-carboxylic acid, 2-chloro-9-hydroxy- CF 125 CME 73170P Chlorflurecol Chlorflurenol Fluorene-9-carboxylic acid, 2-chloro-9-hydroxy- IT 3299 NSC102385