511-12-6 6190-39-2 9,10-Dihydroergotamine mesylate DETMS DHE-45 Dihydergot Dihydroergotamine mesilate Dihydroergotamine mesylate Dihydroergotamine mesylate [USAN] Dihydroergotamine methanesulfonate Dihydroergotamine monomethanesulfonate Dihytamine EINECS 228-235-6 Ergotamine, 9,10-dihydro-, monomethanesulfonate (salt) Ergotoman-3',6',18-trione,9,10-dihydro-12'-hydroxy-2'-methyl-5'-(phenylmethyl)-, (5'alpha)-, monomethanesulfonate (salt) MT 300