Cefprozil

Cefprozil EP Impurity A Cefprozil  Impurity A:

 (2R)-2-Amino-2-(4-hydroxyphenyl)acetic acid ; CAS : 22818-40-2 ; C8H9NO3 ; Mol. Wt.: 167.16 ;
Cefprozil EP Impurity B Cefprozil Impurity B :

Cefadroxil ; (6R,7R)-7-[[(2R)-2-Amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate ; CAS : 70356-03-5 (monohydrate); 53994-73-3 (anhydrous) ; C16H17N3O5S ;
Mol. Wt.: 363.39 ;
Cefprozil EP Impurity C Cefprozil Impurity C:

(6RS)-3-(Aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione ; C11H11N3O3 ;
Mol. Wt.: 233.22 ;
Cefprozil EP Impurity D Cefprozil Impurity D:

(6R,7R)-7-Amino-8-oxo-3-[(1Z)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS : 106447-44-3 ; C10H12N2O3S ; Mol. Wt.: 240.28 ;
Cefprozil EP Impurity E Cefprozil Impurity E:

(6R,7R)-7-[[(2R)-2-Amino-2-[4-[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]oxy]phenyl]acetyl]amino]-8-oxo-3-[(1Z)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; C26H26N4O7S ; Mol. Wt.: 538.57 ;
Cefprozil EP Impurity F Cefprozil Impurity F:

(6R,7R)-7-Amino-8-oxo-3-[(1E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS : 107937-01-9 ; C10H12N2O3S ; Mol. Wt.: 240.28 ;
Cefprozil EP Impurity G Cefprozil Impurity G :

(2R)-2-[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino-2-[(2R)-4-carboxy-5-[(1Z)-prop-1-enyl]-3,6-dihydro-2H-1,3-thiazin-2-yl]-acetic acid ; C18H21N3O6S ; Mol. Wt.: 407.44 ;
Cefprozil EP Impurity H Cefprozil Impurity H:

(6R,7R)-7-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-3-[(1Z)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ;C26H26N4O7S ; Mol. Wt.: 538.57 ;
Cefprozil EP Impurity I Cefprozil Impurity I:

(2R)-2-[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino-2-[(2R)-4-carboxy-5-[(1E)-prop-1-enyl]-3,6-dihydro-2H-1,3-thiazin-2-yl]-acetic acid ; C18H21N3O6S ;Mol. Wt.: 407.44 ;
Cefprozil EP Impurity J Cefprozil Impurity J:

(6R,7R)-7-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-3-[(1E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; C26H26N4O7S ;
Mol. Wt.: 538.57 ;
Cefprozil EP Impurity K Cefprozil Impurity K:

Cefprozil RC K ; (3RS,6RS)-3-[(2R,5R)-5-Ethyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]-6-(4-hydroxyphenyl)piperazine-2,5-dione ; C18H19N3O5S ; Mol. Wt.: 389.43 ;
Cefprozil EP Impurity L Cefprozil Impurity L:

2-Hydroxyethyl-(2R)-2-amino-2-(4-hydroxyphenyl)acetate ; CAS : 203007-73-2 ;

C10H13NO4 ; Mol. Wt.: 211.21 ;
Cefprozil EP Impurity M Cefprozil Impurity M:

(6R,7R)-7-[[(2R)-2-Amino-2-[4-[(ethoxycarbonyl)oxy]phenyl]acetyl]amino]-8-oxo-3-[(1Z)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; C21H23N3O7S ; Mol. Wt.: 461.49 ;
Cefprozil EP Impurity N
 Cefprozil Impurity N :
(6R,7R)-7-[[(2R)-2-Amino-2-[4-(ethoxycarbonyl)oxy]phenyl]acetyl]amino]-8-oxo-3-[(1E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; C21H23N3O7S ;Mol. Wt.: 461.49 ;