77312-58-4 D-allo-Inositol, 2-amino-1-O-(2-amino-2,3,4,6-tetradeoxy-6-(methylamino)-alpha-D-erythro-hexopyranosyl)-2,3,5-trideoxy-5-((((iminomethyl)amino)acetyl)methylamino)-, sulfate (1:2) Istamycin A3 disulfate trihydrate