Cetirizine

Cetirizine 3-Chloro Impurity Cetirizine 3-Chloro Impurity:

 (RS)-2-[2-[4-[(3-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy] acetic acid dihydrochloride ; CAS : 1232460-29-5 ; C21H27Cl3N2O3 ; MW: 461.81 ;
Cetirizine 4-Chlorobenzhydrol Impurity Cetirizine 4-Chlorobenzhydrol Impurity  :

Cetirizine 4-CBH Impurity  ; Meclizine USP RC A ; 4-Chlorobenzhydrol ; CAS : 119-56-2 ; C13H11ClO ; MW: 218.68
Cetirizine 4-Chlorobenzophenone Impurity Cetirizine 4-Chlorobenzophenone Impurity :

(4-Chlorophenyl)phenylmethanone ; CAS : 134-85-0 ; C13H9ClO ; MW: 216.66.
Cetirizine Amide Impurity Cetirizine Amide Impurity:

(RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetamide dihydrochloride ; CAS : 200707-85-3 ; C21H28Cl3N3O2 ; MW: 460.82.
Cetirizine Deschloro Ethanol Impurity Cetirizine Deschloro Ethanol Impurity :

2-[4-(Diphenylmethyl)piperazin-1-yl]ethanol dihydrochloride ; CAS : 108983-83-1 ; C19H26Cl2N2O ; MW: 369.33 ;
Cetirizine Dihydrochloride Cetirizine Dihydrochloride:

(RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid dihydrochloride ; CAS : 83881-52-1 ;

C21H27Cl3N2O3 ; MW: 461.81 ;
Cetirizine Impurity A Cetirizine Impurity A:

 (RS)-1-[(4-Chlorophenyl)phenylmethyl]piperazine ; CAS : 303-26-4 ; C17H19ClN2 ; MW: 286.8 ;
Cetirizine Impurity B Cetirizine Impurity B :

(RS)-2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]acetic acid dihydrochloride ; CAS : 942132-30-1 (HCl salt) ; 942193-17-1 (base) ; C19H23Cl3N2O2 ;  MW: 417.76
Cetirizine Impurity B Ethyl Ester Cetirizine  Impurity B Ethyl Ester :

(RS)-2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]acetic acid ethyl ester ;

C21H25ClN2O2 ; MW: 372.89 ;
Cetirizine Impurity C Cetirizine  Impurity C:

Cetirizine 2-Chloro Analog ; (RS)-2-[2-[4-[(2-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy] acetic acid dihydrochloride ; CAS : 83881-59-8 (base) ;

C21H27Cl3N2O3 ; MW: 461.81 ;
Cetirizine Impurity D Cetirizine  Impurity D:

1,4-bis[(4-Chlorophenyl)phenylmethyl]piperazine dihydrochloride ; CAS : 346451-15-8 (base) ; 856841-95-7 (2HCl) ; C30H30Cl4N2 ; MW: 560.38 ;
Cetirizine Impurity E Cetirizine  Impurity E:

(RS)-2-[2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy] ethoxy] acetic acid ; CAS : 682323-77-9 (base) ; 83881-56-5 (HCl) ;

C23H29ClN2O4 (base) ; MW: 432.94 ;

C23H31Cl3N2O4 (HCl salt) ; MW: 505.86 ;
Cetirizine Impurity F Cetirizine  Impurity F:

[2-[4-(Diphenylmethyl)piperazin-1-yl]ethoxy]acetic acid dihydrochloride ; CAS : 83881-54-3 (HCl) ; CAS : 83881-53-2 (Free Base) ; C21H28Cl2N2O3 ; MW: 427.36 ;
Cetirizine Impurity G Cetirizine  Impurity G :

2-[4-[(RS)-(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethanol dihydrochloride ; CAS : 728948-88-7 ; C19H25Cl3N2O ; Mol. Wt.: 403.77 ;
Cetirizine Methyl Ester Cetirizine Methyl Ester :

(RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid methyl ester dihydrochloride ; CAS : 83881-46-3 ; C22H29Cl3N2O3 ; MW: 475.84 ;
Cetirizine N-Oxide Cetirizine N-Oxide :

(RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]-1-oxido-piperazin-1-yl]ethoxy] acetic acid ; CAS : 1076199-80-8 ; C21H25ClN2O4 ; MW: 404.89 ;
Cetirizine R-Isomer Cetirizine R-Isomer:

(R)-Cetirizine DiHydrochloride ; LevoCetirizine Dihydrochloride ; (R)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid dihydrochloride ; CAS : 130018-77-8 ; C21H27Cl3N2O3 ; MW: 461.81 ;
Cetirizine S-Isomer Cetirizine S-Isomer:

(S)-Cetirizine DiHydrochloride ; (S)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid dihydrochloride ; CAS : 163837-48- 7 (HCl); 130018-76-7 (base) ;

C21H27Cl3N2O3 ; MW: 461.81 ;
Cetirizine RC A

Cetirizine RC A :

Cetirizine Dihydrochloride Ethyl Ester ;; (RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid ethyl ester dihydrochloride ; CAS :  246870-46-2 (base) ; C23H31Cl3N2O3 ; MW: 489.86 ;
Cetirizine USP RC B Cetirizine USP RC B:

Cetirizine Deschloro Ethanol Impurity ; 2-[4-(Diphenylmethyl)piperazin-1-yl]ethanol dihydrochloride ; CAS : 108983-83-1 ; C19H26Cl2N2O ; MW: 369.33 ;
Cetirizine USP RC C

Cetirizine USP RC C :

Cetirizine Amide Impurity ; (RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetamide dihydrochloride ;
CAS : 200707-85-3 (HCl salt) ; 83881-37-2 (base) ;
C21H28Cl3N3O2 (HCl salt) ; MW: 460.82 ;