3-Epicrinamine 466-75-1 4a.beta.,5.alpha.,11b.alpha.-Crinan-12-ol, 1,2-didehydro-3.beta.-methoxy-, (12R)- Crinan-11-ol, 1,2-didehydro-3-methoxy-, (3.beta.,5.alpha.,11R,13.beta.,19.alpha.)- Crinan-18-ol, 1,2-didehydro-3-methoxy-, (3.beta.,5.beta.,6.alpha.,17.alpha.,18R)- HAEMANTHAMINE HEMANTHAMINE Haemanthamin NSC403140 Natalensin Natalensine