Nicergoline Catalogue N252510 CAS 27848-84-6 M.W 484.39 M.F C24H26BrN3O3 Specifications FAQs ((6aR,9R,10aS)-10a-methoxy-4,7-dimethyl-4,6,6a,7,8,9,10,10a-octahydroindolo[4,3-fg]quinolin-9-yl)methyl 5-bromonicotinate