Synonyms: 1-Hydroxy-4[[2-hydroxy-5-[1-hydroxy-2-[[6-(4-phenylbutoxy)hexyl]amino]ethyl]phenyl]methyl]-2-naphthalenecarboxylic Acid, 2-Naphthalenecarboxylic acid, 1-hydroxy-4-[[2-hydroxy-5-[1-hydroxy-2-[[6-(4-phenylbutoxy)hexyl]amino]ethyl]phenyl]methyl]-, USP Salmeterol Related Compound H, GR 97980X