610271-56-2

2-[4-(4-Morpholinyl)-1,2,5-thiadiazol-3-yl]-rac-Timolol Ether (Timolol EP Impurity C; Timolol BP Impurity C; Timolol USP Related Compound C) is a mixture of 2-[4-(4-Morpholinyl)-1,2,5-thiadiazol-3-yl] (R)-(+)-Timolol ether (M725155) and 2-[4-(4-Morpholinyl)-1,2,5-thiadiazol-3-yl] (S)-(-)-Timolol ether (M725160), both impurities of (R)-(+)-Timolol (T443705) and (S)-(-)-Timolol (T443710), respectively.