(4-alpha,17R,21-alpha)-17,21-Dihydroxy-4-(phenylmethyl)ajmalanium chloride 168610-89-7 Ajmalanium, 17,21-dihydroxy-4-(phenylmethyl)-, chloride, (4-alpha,17R,21-alpha)- Ajmalinium, N(sup 4)-benzyl-, chloride N4-Benzylajmalinium chloride