无锡鸣鹭医药科技有限公司

Cefotaxime Sodium Salt
(6R,7R)-3-(Acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, sodium salt (1:1)

MF:C₁₆H₁₆N₅O₇S₂. Na| MW:454.45 22.99 | CAS:64485-93-4

Cefotaxime EP Impurity A (Cefetamet)
(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₁₄H₁₅N₅O₅S₂| MW:397.42 | CAS:65052-63-3

Cefotaxime EP Impurity B
(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₁₄H₁₅N₅O₆S₂| MW:413.42 | CAS:66340-28-1

Cefotaxime EP Impurity C
(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-formamidothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₁₇H₁₇N₅O₈S₂| MW:483.47 | CAS:66403-32-5

Cefotaxime EP Impurity D Sodium Salt ((E)-Cefotaxime Sodium Salt)
(6R,7R)-3-(acetoxymethyl)-7-((E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, sodium salt (1:1)

MF:C₁₆H₁₆N₅O₇S₂. Na| MW:454.45 22.99 | CAS:65715-12-0

Cefotaxime EP Impurity G
(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₂₂H₂₂N₈O₉S₃| MW:638.65 |

Cefotaxime Bromoacetyl Analog
(6R,7R)-3-(acetoxymethyl)-7-((Z)-4-bromo-2-(methoxyimino)-3-oxobutanamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₁₅H₁₆BrN₃O₈S| MW:478.27 | CAS:83305-12-8

Cefotaxime Impurity 1

MF:

C24H23N7O9S3| MW:649.67 |

Cefotaxime Impurity 2 Triethylamine Salt
(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-((benzo[d]thiazol-2-ylthio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate, triethylamine salt (1:1)

MF:C₂₁H₁₈N₆O₅S₄. Et₃N| MW:562.67 101.19 |

Cefotaxime-13C-d3
(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((methoxy-13C-d3)imino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₁₅¹³CH₁₄D₃N₅O₇S₂| MW:459.47 |

Cefotaxime EP Impurity F (Cefotaxime Dimer)
(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-((((6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl)methyl)amino)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

MF:C₃₀H₃₀N₁₀O₁₂S₄| MW:850.87 | CAS:175032-97-0

Cefotaxime Impurity 3

MF:C₁₄H₁₃N₅O₅S₂| MW:395.41 |

Cefotaxime S-Oxide
(6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxide

MF:C₁₆H₁₇N₅O₈S₂| MW:471.46 | CAS:97466-27-8

Cefotaxime Impurity 4
(2R,6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid

MF:C₁₆H₁₆N₅O₇S₂| MW:455.46 | CAS:126747-48-6

Cefotaxime Impurity 5 Sodium Salt
(6R,7R)-7-((E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate, sodium salt (1:1)

MF:C₁₄H₁₄N₅O₆S₂. Na| MW:412.43 22.99 |

Cefotaxime Impurity 6
(E)-2-(2-aminothiazol-4-yl)-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-(methoxyimino)

MF:C₁₄H₁₃N₅O₅S₂| MW:395.41 | CAS:123238-79-9

Cefotaxime Impurity 7

MF:C₁₄H₁₅N₅O₆S₂| MW:413.42 | CAS:75679-12-8

Cefotaxime Impurity 8
(E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetic acid

MF:C₆H₇N₃O₃S| MW:201.20 | CAS:66341-09-1

E-Cefotaxime S-Oxide Sodium Salt
(6R,7R)-3-(acetoxymethyl)-7-((E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxide, sodium salt (1:1)

MF:C₁₆H₁₆N₅O₈S₂. Na| MW:470.45 22.99 |

Cefotaxime Impurity 9 Sodium Salt
(6R,7S)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, sodium salt (1:1)

MF:C₁₆H₁₆N₅O₇S₂. Na| MW:454.45 22.99 |