Butanoic acid, 2,3-dihydroxy-2-(1-methylethyl)-, (2,3,5,7a-tetrahydro-1-hydroxy-1H-pyrrolizin-7-yl)methyl ester, hydrochloride, (1S-(1-alpha,7(2R*,3R*),7a-alpha))- EK7791000 Echinatine hydrochloride