Synonyms: S-Adchnone;Adchnon S;S-Adchnon;Adrenochrome guanylhydrazone mesilate;Adrenochrome monoguanylhydrazone methanesulfonate;5,6-Indoledione, 3-hydroxy-1-methyl-, 5-(amidinohydrazone), monomethanesulfonate (salt);Methanesulfonic acid, compd. with (3-hydroxy-1-methyl-6-oxo-5(6H)-indolinyleneamino)guanidine;Guanidine, ((5,6-dihydro-3-hydroxy-1-methyl-6-oxo-5-indolinylidene)amino)-, monomethanesulfonate (salt);Hydrazinecarboximidamide, 2-(1,2,3,6-tetrahydro-3-hydroxy-1-methyl-6-oxo-5H-indol-5-ylidene)-, monomethanesulfonate (salt);Methanesulfonic acid, compd. with ((3-hydroxy-1-methyl-6-oxo-5(6H)-indolinylidene)amino)guanidine;AC1NSEAM;LS-83031;Adrenochrome guanylhydrazone mesilate [JAN];2-[(6-hydroxy-1-methyl-3-oxoindol-1-ium-5-yl)amino]guanidine; methanesulfonate;30500-64-2;4009-68-1