75202-36-7

4-?(4-Morpholinyl)?-1,?2,?5-?thiadiazol-?3(2H)?-?one 1-Oxide (Timolol EP Impurity G; Timolol BP Impurity G) is an impurity of Timolol (T4437005), an antihypertensive, an adrenergic blocking agent (1); antiarrhythmic (class II); antianginal; antiglaucoma (2) and antihypertensive (3) agent.