Levocetirizine

LEVOCETIRIZINE :

2-(2-{4-[(R)-(4-chlorophenyl)(phenyl)methyl]piperazin-1-yl}ethoxy)acetic acid;  Cas No. : 130018-77-8 ; C21H25CIN2O3 ; MW: 388.89 ;

LEVOCETIRIZINE IMPURITY A :

N-(4-Chlorobenzhydryl)piperazine; Cas No. : 303-26-4 ; C17H19ClN2; MW:286.8 ;

LEVOCETIRIZINE IMPURITY B:

4-[(4-Chlorophenyl)phenylmethyl]-1-piperazineacetic Acid; Cas No. : 113740-61-7 ;  C19H21ClN2O2 ; MW:344.84 ;

LEVOCETIRIZINE IMPURITY C:

 2-[2-[4-[(2-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetic Acid Hydrochloride; C21H27Cl3N2O3;  MW:461.81;

LEVOCETIRIZINE IMPURITY C: (FREE BASE)

  2-[2-[4-[(2-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetic Acid; Cas No.: 83881-59-8 ; C21H25ClN2O3;  MW:388.89;

LEVOCETIRIZINE IMPURITY D:

1,4-Bis[[](4-Chlorophenyl)(phenyl)methyl]piperazine Dihydrochloride;

Cas No.: 856841-95-7 ; C30H30Cl4N2;  MW:487.46;

LEVOCETIRIZINE IMPURITY D: (FREE BASE)

1,4-Bis[(4-Chlorophenyl)(phenyl)methyl]piperazine;  Cas No.: 346451-15-8 ; C30H28Cl2N2;  MW:487.46;

LEVOCETIRIZINE IMPURITY E:

2-[[]2-[[]2-[[]4-[[](4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]ethoxy]acetic Acid Hydrochloride; Cas No.: 83881-56-5 ;  C23H31Cl3N2O4;  MW:505.86 ;

LEVOCETIRIZINE IMPURITY E: (FREE BASE)

2-(2-(2-(4-((4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)ethoxy)acetic Acid;  Cas No.: 682323-77-9 ; C23H29ClN2O4 ;  MW: 432.94 ;

LEVOCETIRIZINE IMPURITY F :

2-[2-[4-(Diphenylmethyl)-1-piperazinyl]ethoxy]acetic Acid Hydrochloride;  Cas No.: 83881-54-3 ; C21H28Cl2N2O3 ;  MW: 427.36;

LEVOCETIRIZINE IMPURITY F : (FREE BASE)

2-[2-[4-(Diphenylmethyl)-1-piperazinyl]ethoxy]acetic Acid;  Cas No.: 83881-53-2 ; C21H26N2O3;  MW: 354.44;

LEVOCETIRIZINE IMPURITY G:

4-[(4-Chlorophenyl)phenylmethyl]-1- 4-(p-Chloro-α-phenylbenzyl)-1-piperazineethanol Dihydrochloride;  Cas No.: 164726-80-1 ; C19H25Cl3N2O;  MW:403.77;

LEVOCETIRIZINE IMPURITY G: (FREEBASE)

2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethanol;  Cas No.: 109806-71-5 ; C19H23ClN2O;  MW:330.85;

LEVOCETIRIZINE DIHYDROCHLORIDE:

2-[2-[4-[(R)-(4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetic Acid Dihydrochloride; Cas No.: 130018-87-0 ;  C21H27Cl3N2O3;   MW:461.81;

LEVOCETIRIZINE N-OXIDE:

 (R)-[2-[4-(4-Chlorophenyl)phenylmethyl]-1-oxido-1-piperazinyl]ethoxy]acetic Acid;  Cas No.: 442863-80-1 ;  C21H25ClN2O4;  MW:404.89;

P-CHLOROBENZOPHENONE:

4-Chlorobenzophenone; Cas No.: 134-85-0 ; C21H25ClN2O4; MW:404.89;

P-CHLOROBENZHYDROL:

 (4-Chlorophenyl)phenylmethanol;  Cas No.: 119-56-2 ;  C13H11ClO; MW:218.68;

CETIRIZINE POLYETHYLENE GLYCOL (PEG) ESTER :

Levocetirizine Polyethylene Glycol (PEG) Ester;  Cas No.: 1509941-93-8 ; C21H25ClN2O3[C2H4O]n; MW:432.94;

(S)-CETIRIZINE DIHYDROCHLORIDE:

(S)-[2-[4-[(4-Chlorophenyl)-phenylmethyl]-1-piperazinyl]ethoxy]acetic Acid Dihydrochloride;  Cas No.: 163837-48-7 ; C21H27Cl3N2O3; MW:461.81;