711598-76-4

CAS Number Cefoperazone Impurity 1 Cefoperazone Sodium Impurity B 5-Desthiolyl-5-thioxo Cefoperazone 5-Desthiolyl-5-thioxo Cefoperazone Discontinued (6R,7R)-7-((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-((4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-7-[[(2R)-2-[(4-ethyl-2,3-dioxopiperazine-1-carbonyl)amino]-2-(4-hydroxyphenyl)acetyl]amino]-3-[(4-methyl-5-sulfanylidenetetrazol-1-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-3-[(4,5-Dihydro-4-Methyl-5-thioxo-1H-tetrazol-1-yl)Methyl]-7-[[(2R)-2-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]aMino]-2-(4-hydroxyphenyl)acetyl]aMino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Aci 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(4,5-dihydro-4-methyl-5-thioxo-1H-tetrazol-1-yl)methyl]-7-[[(2R)-2-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-, (6R,7R)- Cefoperazone impurity 2/Cefoperazone EP Impurity B/(6R,7R)-7-((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-((4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Cefoperazone impurity 2/Cefoperazone EP Impurity B/(6R,7R)-7-((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-((4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid