40494-44-8 5H-BENZOCYCLOHEPTENE-9-ACETIC ACID, 6,7-DIHYDRO-, (1-METHYL-2-PIPERIDINYL)METHYL 5H-Benzocycloheptene-9-acetic acid, 6,7-dihydro-, (1-methyl-2-piperidinyl)methyl ester, hydrochloride