英文名称
3,4-Bis(difluoromethoxy)benzaldehyde
Chloroform (Slightly), Methanol (Slightly)
Standards; Pharmaceutical/API Drug Impurities/Metabolites;
3,4-Bis(difluoromethoxy)benzaldehyde is an impurity of the antiasthmatic drug Roflumilast (R639700). 3,4-Bis(difluoromethoxy)benzaldehyde is used in the preparation of diphenylethylene compounds as PDE4 (phosphodiesterase-4) inhibitors for treatment of cancer, CNS disorders, and inflammatory disorders.