cas no:n/a||chemical formula:c22h19n3o6s||molecular weight:453.46900||exact mass:453.09946||3-nitrobenzyl(z)-2-(3-benzyl-7-oxo-4-thia-2,6-diazabicyclo[3.2.0]hept-2-en-6-yl)-3-hydroxybut-2-enoate3-nitrobenzyl2-(3-benzyl-7-oxo-4-thia-2,6-diazabicyclo[3.2.0]hept-2-en-6-yl)-3-oxobutanoate
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