CAS number 108321-42-2
Molecular weight C₂₀H₄₀N₄O₁₀.2H₂SO₄ = 692.7
Assay :> 650 microg / mg

CAS number 25389-94-0
Molecular weight C₁₈H₃₆N₄O₁₁.H₂SO₄.H₂O=600.6
Activity > 750 IU / mg
Kanamycin B < 4 %

CAS number 1263-89-4
Molecular weight C₂₃H₄₅N₅O₁₄.xH₂SO₄
Assay > 675 microg / mg