罗氟司特杂质  Roflumilast impurity

LFT-A  4-(cyclopropylMethoxy)-N-(3,5dichloropyridin-4-yl)-3(difluoroMethoxy)benzaMide;RofluMilas t related substance A  162401-43-6

LFT-B  3-(cyclopropylMethoxy)-N-(3,5dichloropyridin-4-yl)-4hydroxybenzaMide;RofluMilast related substance B  475271-62-6

LFT-C  3,5-dichloropyridin-4-aMine   22889-78-7

LFT-D  3-(cyclopropylMethoxy)-4hydroxybenzoic acid;RofluMilast related substance D  1243391-44-7

LFT-H  N-(3,5-Dichloro-4-pyridinyl)-3,4bis(difluoroMethoxy)benzaMide  162401-30-1

LFT-I  3-(CyclopropylMethoxy)-N-(3,5dichloro-1-oxido-4-pyridinyl)-4(difluoroMethoxy)benzaMide  292135-78-5