Hydrogen fumarate Brovincamin 11-Bromovincamine fumarate Brovincamine hydrogen fumarate BV 26-723 Eburnamenine-14-carboxylic acid, 11-bromo-14,15-dihydro-14-hydroxy-, methyl ester, (3α,14β,16α)-, (2E)-2-butenedioate (1:1) (salt) Eburnamenine-14-carboxylic acid, 11-bromo-14,15-dihydro-14-hydroxy-, methyl ester, (3α,14β,16α)-, (E)-2-butenedioate (1:1) (salt) Sabromin