Timolol26839-75-8100 % similar 3-Chloro-4-morpholino-1,2,5-thiadiazole30165-96-937 % similar Nadolol42200-33-937 % similar (2S)-3-[(1,1-Dimethylethyl)amino]-1,2-propanediol30315-46-935 % similar Levobunolol47141-42-433 % similar Carteolol hydrochloride51781-21-632 % similar Celiprolol hydrochloride57470-78-730 % similar