11-Bromovincamine fumarate 57475-17-9 84964-12-5 Brovincamine fumarate Brovincamine hydogen fumurate Eburnamenine-14-carboxylic acid, 14,15-dihydro-11-bromo-14-hydroxy-, methyl ester, (3-alpha,14-beta,16-alpha)-, (E)-2-butenedioate (1:1) (salt)