Organic IntermediateChina Diflunisal / Diflusinal / Labotest-Bb Lt00771921 / 2′, 4′-Difluoro-4-Hydroxy[1, 1′-Biphenyl]-3-Carboxylic Acid / CAS 22494-42-4, Find details about China Pharmaceutical Intermediates, Diflunisal from Diflunisal / Diflusinal / Labotest-Bb Lt00771921 / 2′, 4′-Difluoro-4-Hydroxy[1, 1′-Biphenyl]-3-Carboxylic Acid / CAS 22494-42-4