Tolvaptan API Name Tolvaptan Intermediate Name 1 1-(4-amino-2-methylbenzoyl)-7-chloro-1,2,3,4-tetrahydro-5H-benzo[b]azepin-5-one CAS No 137977-97-0 Contact Us Intermediate Name 2 N-(4-(7-chloro-5-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepine-1-carbonyl)-3 methylphenyl)-2-methylbenzamide CAS No 137973-76-3 Contact Us