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cas no: 15686-71-2(cephalexin monohydrate cas no:23325-78-2)||chemical formula:c16h17n3o4s||molecular weight:347.38900||exact mass:347.09398||}(6r,7r)-7-[(r)-2……

cas no:875-74-1||chemical formula:c8h9no2||molecular weight:151.16500||exact mass:151.06333||(r)-2-amino-2-phenylacetic acid

cas no:22252-43-3||chemical formula:c8h10n2o3s||molecular weight:214.23900||exact mass:214.04121 ||(6r,7r)-7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-……

cas no:72528-40-6||chemical formula:c24h24n4o5s||molecular weight:480.53900||exact mass:480.14674||(6r,7r)-7-((r)-2-((r)-2-amino-2-phenylacetamido)-2-phenylacet……

cephalexin ep impurity d(cefradine ep impuity f,cefadroxil ep impurity g),cas no:34876-35-2||chemical formula:c5h6o2s ||molecular weight:130.16100||exact mass:1……

cas no:146794-70-9||chemical formula:c13h18n2o4s||molecular weight:298.35700||exact mass:298.09873||(6r,7r)-3-methyl-8-oxo-7-pivalamido-5-thia-1-azabicyclo[4.2.……

cas no:79750-46-2||chemical formula:c16h17n3o4s||molecular weight:347.38900||exact mass:347.09398||(2r,6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo-5……

cas no:n/a||chemical formula:c24h24n4o5s||molecular weight:480.53900 ||exact mass:480.14674 ||(s)-2-((6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo-5-……

cas no:56193-21-6||chemical formula:c16h17n3o5s||molecular weight:363.38800||exact mass:363.08889||(6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo-5-th……

cas no: | chemical formula: c16h17n3o5s | (6r,7r)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxi……

cas no:n/a ||chemical formula:c32h32n6o7s2||molecular weight:676.76250 ||exact mass:676.17740 || (6r,7r)-7-((s)-2-((6r,7r)-7-((s)-2-amino-2-phenylacetamido)-3-m……

cas no:n/a||chemical formula:c16h17n3o4s||molecular weight:347.38888||exact mass:347.09398||(6r,7s)-7-((r)-2-amino-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-az……