2H-Pyrano(2,3-b)(1,4)benzodioxin-4a,7,9(10aH)-triol, 4-aminooctahydro-2-methyl-6,8-bis(methylamino)-, (2R-(2alpha,4alpha,4abeta,5abeta,6beta,7beta,8beta,9alpha,9aalpha,10abeta))- 4-Adh-spectinomycin 4-Amino-4-dihydrospectinomycin 72748-69-7