Norfloxacin

Norfloxacin Norfloxacin :

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ; CAS : 70458-96-7 ;  C16H18FN3O3 ; MW: 319.33 ;
Norfloxacin EP Impurity A Norfloxacin Impurity A :

7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ; CAS : 68077-26-9 ;

C12H9ClFNO3 ; MW: 269.66 ;
Norfloxacin EP Impurity B Norfloxacin Impurity B:

 7-[(2-Aminoethyl)amino]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HCl ; CAS : 75001-77-3 ; C14H17ClFN3O3 ; MW: 329.75 ;
Norfloxacin EP Impurity C Norfloxacin Impurity C:

Norfloxacin Dipiperazine Impurity ; C15H18FN3O ; MW: 275.32 ;
Norfloxacin EP Impurity D Norfloxacin Impurity D:

1-Ethyl-6-fluoro-7-(piperazin-1-yl)quinolin-4(1H)-one ; CAS : 75001-82-0 ; C15H18FN3O ; MW: 275.32 ;
Norfloxacin EP Impurity E Norfloxacin Impurity E:

Norfloxacin HCl 7-Chloro Analog ; 7-Chloro-1-ethyl-4-oxo-6-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid HCl ; CAS : 75001-78-4 ; C16H18ClN3O3 . HCl ; MW: 335.79 (base);
Norfloxacin EP Impurity F Norfloxacin Impurity F:

6-Chloro-1-ethyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;

C16H18ClN3O3 ; MW: 335.79 ;
Norfloxacin EP Impurity G Norfloxacin Impurity G:

Norfloxacin N-Formyl Impurity ; 1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ; CAS : 70459-04-0 ; C17H18FN3O4 ; MW: 347.34 ;
Norfloxacin EP Impurity H Norfloxacin Impurity H :

Norfloxacin N-Ethoxycarbonyl Impurity ; 7-[4-(Ethoxycarbonyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydro quinoline-3-carboxylic acid ; CAS : 105440-01-5 ; C19H22FN3O5 ; MW: 391.39 ;
Norfloxacin EP Impurity I Norfloxacin  Impurity :

7-Chloro-6-[4-(ethoxycarbonyl)piperazin-1-yl]-1-ethyl-4-oxo-1,4-dihydro quinoline-3-carboxylic acid ; C19H22ClN3O5 ;Mol. Wt.: 407.85 ;
Norfloxacin EP Impurity J Norfloxacin Impurity J:

6,7-bis[4-(Ethoxycarbonyl)piperazin-1-yl]-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ; C26H35N5O7 ; Mol. Wt.: 529.59 ;
Norfloxacin EP Impurity K Norfloxacin Impurity K:

 

 6-Fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;

CAS : 70459-07-3 ; C15H16FN3O3 ; Mol. Wt.: 305.30 ;