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Cefixime impurity 8/Cefixime Oxide Impurity/Cefixime Sulfoxide/(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxide 1335555-87-7 马上询价
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Cefixime impurity 13/Cefixime TBE impurity A/Cefixime tert-Butyl Ester/(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-((2-(tert-butoxy)-2-oxoethoxy)imino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 79368-92-6 马上询价
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Cefixime impurity 18/(Z)-2-hydroxyimino-3-oxo-butyric acid tert-butyl ester 79232-64-7 马上询价
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Cefixime impurity 19/tert-Butyl 2-methoxycarbonyl-methoxyimino-3- oxobutyrate 84080-68-2 马上询价
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Cefprozil EP impurity C/Cefadroxil EP Impurity E/(R)-3-(aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione 147103-93-3 马上询价
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Cefprozil EP impurity D/(6R,7R)-7-amino-8-oxo-3-((Z)-prop-1-en-1-yl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 106447-44-3 马上询价
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Cefprozil EP impurity F/(6R,7R)-7-amino-8-oxo-3-((E)-prop-1-en-1-yl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 107937-01-9 马上询价
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Cefprozil EP impurity L/2-hydroxyethyl (R)-2-amino-2-(4-hydroxyphenyl)acetate/D(-)-4-Hydroxyphenylglycine Hydroxy Ethyl Ester 203007-73-2 马上询价
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Azithromycin EP Impurity A/(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy) 76801-85-9 马上询价
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Azithromycin EP Impurity B/(2R,3R,4S,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-4,10-dihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3, 307974-61-4 马上询价
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Azithromycin EP Impurity C/2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-(((2R,4R,5S,6S)-4,5-dihydroxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-3,5,6, 620169-47-3 马上询价
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Azithromycin EP Impurity D/(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy) 612069-26-8 马上询价
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Azithromycin EP Impurity E/(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-amino-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,1 612069-27-9 马上询价
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Azithromycin EP Impurity F/N-((2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopentadecan- 612069-28-0 马上询价
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Azithromycin EP Impurity G/N-((2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopentadecan- 612069-31-5 马上询价
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Azithromycin EP Impurity H/N-(4-(N-((2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopenta 612069-30-4 马上询价
