Methotrexate disodium salt

4-(4-Fluorophenyl)-6-isopropyl-2-[(N-methyl-n-methylsulfonyl)amino]pyrimidine-5-yl-methanol

4-Chloro-3-(trifluoromethoxy)benzoic acid

2-Fluoro-4-(trifluoromethyl)benzaldehyde

2,3,4,5,6-pentafluorobenzaldehyde

4-Chloro-5,6-difluoronicotinic acid