Synonyms: 5H-2-Pyrindinium,6,7-dihydro-2-(p-hydroxyphenethyl)-4,7-dimethyl-, (S)- (8CI);5H-Cyclopenta[c]pyridinium,6,7-dihydro-2-[2-(4-hydroxyphenyl)ethyl]-4,7-dimethyl-, (S)-;6,7-Dihydro-2-[2-(4-hydroxyphenyl)ethyl]-4,7-dimethyl-5H-cyclopenta[c]pyridinium;Alkaloid A, from Valeriana officinalis