5989-77-5 9,10-Dihydroergotamine tartrate Bis(5'alpha-benzyl-9,10alpha-dihydro-12'-hydroxy-2'-methylergotaman-3',6',18-trione) (R-(R*,R*))-tartrate Dihydroergotamine tartrate (2:1) EINECS 227-816-1 Ergotamine, dihydro-, tartrate (2:1)(salt)