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cas no:n/a 59865-11-1||chemical formula:c16h17n3o4s ||molecular weight:347.38900 ||exact mass:347.09398 ||2-(3,6-dioxo-5-phenylpiperazin-2-yl)-5-methyl-3,6-dih……

cas no:n/a ||chemical formula:c16h14d5n3o5s||(6r,7r)-7-[[(2r)-2-amino-2-(phenyl-d5)acetyl]amino]-3-methyl-8-oxo -5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxyli……

cas no:65870-51-1||chemical formula:c11h11n3o2||molecular weight:217.22800||exact mass:217.08513||3-(aminomethylene)-6-phenylpiperazine-2,5-dione

cas no:n/a ||chemical formula:c11h10n2o3 ||molecular weight:218.21200 ||exact mass:218.06914 || 3-(hydroxymethylene)-6-phenylpiperazine-2,5-dione​

cas no: 65870-52-2||chemical formula:c16h17n3o4s||molecular weight:347.38900||exact mass:347.09398||2-(3,6-dioxo-5-phenylpiperazin-2-yl)-5 -methyl-5,6-dihydro-2……

cas no:n/a||chemical formula:c21h27n7o2||molecular weight:361.41600||exact mass:361.10963||(6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-ethyl-8-oxo-5-thia-1-azab……

cas no:n/a||chemical formula:c16h17n3o4s||molecular weight:347.38900||exact mass:347.09398||(6r,7r)-7-((s)-2-amino-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-az……

cas no:n/a||chemical formula:c16h19n3o5s||molecular weight:365.40400||exact mass:365.10454||2-(((r)-2-amino-2-phenylacetamido)(carboxy)methyl)-5-methyl-3,6-dihy……

cas no:n/a||chemical formula:c31h34n6o6s2||molecular weight:650.76900||exact mass:650.19812||(6r,7r)-7-((2r)-2-(2-(((r)-2-amino-2-phenylacetamido)methyl)-5-meth……

cas no:n/a||chemical formula:c32h34n6o8s2"||molecular weight:694.77800||exact mass:694.18795||(6r,7r)-7-((2r)-2-(2-(((r)-2-amino-2-phenylacetamido)(carboxy)meth……

cas no:n/a||chemical formula:c32h34n6o8s2||molecular weight:694.77800||exact mass:694.18795||2-(((r)-2-((6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo……

cas no:n/a||chemical formula:c31h34n6o6s2||molecular weight:650.76900||exact mass:650.19812||2-(((r)-2-((6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo……