cas no: 27164-46-1 | chemical formula: c14h13n8nao4s3 | sodium (6r,7r)-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-8-oxo-7-[(1h-tetrazol-1-ylacetyl)am……
cas no: 1798390-48-3 | chemical formula: c16h20n4o4s3 | (7r)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-7-pivalamido-5-thia-1-azabicyclo[4.2.0]oct-……
cas no: 56842-77-4 | chemical formula: c11h12n6o4s | (7r)-7-(2-(1h-tetrazol-1-yl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic aci……
cas no: 32510-61-5 | chemical formula: c13h14n6o6s | (6r,7r)-7-(2-(1h-tetrazol-1-yl)acetamido)-3-(acetoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-c……
cas no:29490-19-5 | chemical formula: c3h4n2s2 | (7r)-7-amino-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-car……
cas no: 1172998-53-6 | chemical formula: c11h10n6o4s | n-((5ar,6r)-1,7-dioxo-1,4,5a,6-tetrahydro-3h,7h-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)-2-(1h-tetrazol……
cas no: | chemical formula: c14h16n8o5s3| (2r)-2-((r)-(2-(1h-tetrazol-1-yl)acetamido)(carboxy)methyl)-5-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-3,4-di……
cas no: 1322626-65-2 | chemical formula: c14h15n9o3s3 | (7r)-7-(2-(1h-tetrazol-1-yl)acetamido)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-……
目录号: pi00017010 品名: cefazolin epimer cefazolin impuirty m (usp), cefazolin impurity l (ep)
cas no: | chemical formula: c14h14n8o4s3 | (6r,7s)-7-[2-(1h-tetrazol-1-yl)acetamido]-3-[(5-methyl-1,3,4-thiadiazol-2-ylthio)methyl]-8-oxo-5-thia-1-azabicycl……
目录号: pi00017011 品名: cefazolin open-ring lactone， cefazolin impurity d (usp)
cas no: | chemical formula: c11h12n6o5s | (r)-2-[2-(1h-tetrazol-1-yl)acetamido]-2-[(r)-7-oxo-2,4,5,7-tetrahydro-1h-furo[3,4-d][1,3]thiazin-2-yl]acetic acid
cas no: | chemical formula: c14h14n8o5s3| (6r,7r)-7-(2-(1h-tetrazol-1-yl)acetamido)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicycl……
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