Dorzolamide Impurity 3

Chemical Name: (4S,6S)-4-(ethylamino)-N-(((4S,6S)-4-(ethylamino)-6-methyl-7,7-dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-yl)sulfonyl)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide, sodium salt

Synonym: Irinotecan EP Impurity D

Smile: CCN[C@@H](C[C@H](C)[S]1(=O)=O)C2=C1SC([S](N[S](=O)(C3=CC([C@H](C[C@@H]4C)NCC)=C([S]4(=O)=O)S3)=O)(=O)=O)=C2.[Na]