6H,12H-Indazolo[2,1-a]indazole-1,7-dicarboxylic acid, 6,12-dioxo-

Apremilast Ethanone, 2-chloro-1-(3,5-dihydroxyphenyl)- Ipratropium bromide monohydrate (S)-1-(3-Ethoxy-4-Methoxyphenyl)-2-(Methylsulfonyl)ethanaMine 1H-Indole-3,5,6-triol, 2,3-dihydro-1-(1-methylethyl)- (9CI)

3,5-Cyclohexadiene-1,2-dione, 4-[1-hydroxy-2-[(1-methylethyl)amino]ethyl]- Apremilast 1,2-Benzenedicarboxylicacid,3-(hydroxyamino)-(9CI) Apremilast Impurity 3 3-oxo-1,3-dihydro-benzo[c]isoxazole-4-carboxylic acid

(S)-N-(2-(1-(3,4-dihydroxyphenyl)-2-(methylsulfonyl)ethyl)-1,3-dioxoisoindolin-4-yl)acetamide Apremilast APST-ZA (R)-N-(2-(1-(3-Ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl)-1,3-dioxoisoindolin-4-yl)acetamide (S)-N-(2-(1-(3-ethoxy-4-hydroxyphenyl)-2-(methylsulfonyl)ethyl)-1,3-dioxoisoindolin-4-yl)acetamide

Apremilast Impurity 4 2-CHLORO-4'-HYDROXYACETOPHENONE