Known as: Ergotaman-3',6',18-trione, 9,10-dihydro-12'-hydroxy-2'-methyl-5'-(phenylmethyl)-, (5'alpha,10alpha)-, monomethanesulfonate (salt), mixt. with 2-(3,4-bis(2-hydroxyethoxy)phenyl)-3-((6-O-(6-deoxy-alpha-L-mannopyranosyl)-beta-D-glucopyranosyl)oxy)-5-hydroxy-7-(2-hydroxyethoxy)-4H-1-benzopyran-4-one