Cetirizine is sold under the brand name Zyrtec among others, is a second generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria.. Reference standards of Cetirizine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
Cetirizine
Catalogue No.:PA 30 51000
CAS :
Molecular Formula : C21H25ClN2O3
Molecular Weight : 388.89
2-(2-(4-((4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)ethanol Hydrochloride;
Catalogue No.:PA 30 51510
Molecular Formula : C21H28Cl2N2O2
Molecular Weight : 411.37
Cetirizine Methyl Ester
Catalogue No.:PA 30 51520
Molecular Formula : C22H27ClN2O3
Molecular Weight : 402.91
((2R,3R,4S,5R,6S)-3,4,5-Trihydroxy-6-(((2R,3S,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)tetrahydro-2H-pyran-2-yl)methyl 2-(2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetate Hydrochloride
Catalogue No.:PA 30 51530
Molecular Formula : C33H46Cl2N2O13
Molecular Weight : 749.63
Isopropyl Ester of Cetirizine
Catalogue No.:PA 03 36510
Molecular Formula : C24H31ClN2O3
Molecular Weight : 430.97
4-Chlorobenzhydrol
Catalogue No.:PA 03 36520
Molecular Formula : C13H11ClO
Molecular Weight : 218.68
4-Chlorobenzophenone
Catalogue No.:PA 03 36530
Molecular Formula : C13H9ClO
Molecular Weight : 216.66
Cetirizine N-Oxide
Catalogue No.:PA 03 36540
Molecular Formula : C21H25ClN2O4
Molecular Weight : 404.89
Ethyl Ester of Cetirizine Dihydrochloride
Catalogue No.:PA 03 36550
Molecular Formula : C23H31Cl3N2O3
Molecular Weight : 489.86
D-Carnitine
Catalogue No.:PA 03 36560
Molecular Formula : C7H15NO3
Molecular Weight : 161.2
Methyl Ester of Cetirizine Dihydrochloride
Catalogue No.:PA 03 36570
Molecular Formula : C22H29Cl3N2O3
Molecular Weight : 475.84
Cetirizine Ethyl Ester
Catalogue No.:PA 03 36580
Molecular Formula : C23H29ClN2O3
Molecular Weight : 416.94
Cetirizine Lactose Ester
Catalogue No.:PA 03 36590
Molecular Formula : C33H45ClN2O13
Molecular Weight : 713.17
Cetirizine Lactose Ester Sulfate
Catalogue No.:PA 03 36600
Molecular Formula : C33H47ClN2O17S
Molecular Weight : 811.25
Cetirizine Polyethylene Glycol Ester
Catalogue No.:PA 03 36610
Molecular Formula : C21H25ClN2O3[C2H4O]n
Molecular Weight : 432.94
Cetirizine 6,6'-O-Lactose Ester (6,6'-Mixture)
Catalogue No.:PA 03 36620
Molecular Formula : C66H90Cl2N4O26
Molecular Weight : 1426.34
Cetirizine Amide Dihydrochloride
Catalogue No.:PA 03 36630
Molecular Formula : C21H28Cl3N3O2
Molecular Weight : 460.82
Cetirizine Glycerol Ester Hydrochloride Impurity
Catalogue No.:PA 03 36650
Molecular Formula : C24H32Cl2N2O5
Molecular Weight : 499.43
(R)-Cetirizine Propanediol Ester
Catalogue No.:PA 03 36660
Molecular Formula : C24H31ClN2O4
Molecular Weight : 446.97
(S)-Cetirizine Propanediol Ester
Catalogue No.:PA 03 36670
(S)-Cetirizine Hydrochloride
Catalogue No.:PA 03 36680
Molecular Formula : C21H26Cl2N2O3
Molecular Weight : 425.35
Cetirizine Glycol Ester
Catalogue No.:PA 03 36690
(S)-Cetirizine Dihydrochloride
Catalogue No.:PA 03 36700
Molecular Formula : C21H27Cl3N2O3
Molecular Weight : 461.81
N,N-Bis(2-chloroethyl)benzenesulfonamide
Catalogue No.:PA 03 36710
Molecular Formula : C10H13Cl2NO2S
Molecular Weight : 282.19
Cetirizine Amide
Catalogue No.:PA 03 36720
Molecular Formula : C21H26ClN3O2
Molecular Weight : 387.9
tert-Butyl Cetirizine-d8
Catalogue No.:PA STI 015960
Molecular Formula : C25H25D8ClN2O3
Molecular Weight : 453.04
Cetirizine-d8 Dihydrochloride
Catalogue No.:PA STI 018740
Molecular Formula : C21H19D8Cl3N2O3
Molecular Weight : 469.86
(±)-Cetirizine-d4 Dihydrochloride
Catalogue No.:PA STI 018750
Molecular Formula : C21H23D4Cl3N2O3
Molecular Weight : 465.83
Cetirizine-d4
Catalogue No.:PA STI 018751
Molecular Formula : C21H21D4ClN2O3
Molecular Weight : 392.91
(R)-Cetirizine-d4 Dihydrochloride
Catalogue No.:PA STI 018760
(R)-Cetirizine-d4
Catalogue No.:PA STI 018761
rac Cetirizine-d8 N-Oxide
Catalogue No.:PA STI 018770
Molecular Formula : C21H17D8ClN2O4
Molecular Weight : 412.94
Cetirizine-d8 N-(2-Ethoxyacetate)
Catalogue No.:PA STI 018780
Molecular Formula : C25H23D8ClN2O6
Molecular Weight : 499.03
2-[4-[(4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethanol-d4
Catalogue No.:PA STI 020500
Molecular Formula : C19H19D4ClN2O
Molecular Weight : 334.88
1-[(4-Chlorophenyl)phenylmethyl]piperazine-d8
Catalogue No.:PA STI 020570
Molecular Formula : C17H11D8ClN2
Molecular Weight : 294.85
Cetirizine Related Compound B (2-(4-Benzhydrylpiperazin-1-yl)ethan-1-ol dihydrochloride) (1102941)
Catalogue No.:PA USP1102941
Molecular Formula : NA
Molecular Weight : NA
Cetirizine Related Compound A ((RS)-2-[2-[4-[(4-chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]ace (1102930)
Catalogue No.:PA USP1102930
Cetirizine Related Compound C (2-(2-{4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl}ethoxy)acetamid (1102952)
Catalogue No.:PA USP1102952
Cetirizine Hydrochloride (1102929)
Catalogue No.:PA USP1102929
Cetirizine for peak identification (Y0001197)
Catalogue No.:PA EPY0001197
cetirizine hydrochloride (837RB)
Catalogue No.:PA BP837RB
cetirizine impurity standard (1081RB)
Catalogue No.:PA BP1081RB
Cetirizine Related Compound G (2-{4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl}ethanol dihydrochl (1102963)
Catalogue No.:PA USP1102963
Cetirizine dihydrochloride (C0980650)
Catalogue No.:PA EPC0980650
Cetirizine impurity A (C0980651)
Catalogue No.:PA EPC0980651
2-Hydroxypropyl 2-(2-(4-((R)-(4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetate
Catalogue No.:PAI 03 001530
(2-Chlorophenyl)(phenyl)methanol
Catalogue No.:PAI 03 001550
1-Chloro-2-(chloro(phenyl)methyl)benzene
Catalogue No.:PAI 03 001560
Molecular Formula : C13H10Cl2
Molecular Weight : 237.12
2-(4-((2-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethanol
Catalogue No.:PAI 03 001570
Molecular Formula : C19H23ClN2O
Molecular Weight : 330.85
2-(2-(4-((2-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetic Acid
Catalogue No.:PAI 03 001580
(R)-2-Oxopropyl 2-(2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetate
Catalogue No.:PAI 03 001590
Molecular Formula : C24H29ClN2O4
Molecular Weight : 444.95
2-(2-(4-Benzhydrylpiperazin-1-yl)ethoxy)acetamide
Catalogue No.:PAI 03 001600
Molecular Formula : C21H27N3O2
Molecular Weight : 353.46
1-((3-Chlorophenyl)(phenyl)methyl)piperazine
Catalogue No.:PA 30 51550
Molecular Formula : C17H19ClN2
Molecular Weight : 286.8
1-(4,4'-Dichlorobenzhydryl)piperazine
Catalogue No.:PA 30 51560
Molecular Formula : C17H18Cl2N2
Molecular Weight : 321.25
Catalogue No.:PA IPIMP 01 15
Molecular Formula :
Cetirizine Sorbitol Ester Hydrochloride
Catalogue No.:PA 03 36730
Molecular Formula : C27H38Cl2N2O8
Molecular Weight : 589.51
Propylene glycol ester of cetrizine diastereomer 2
Catalogue No.:PA 03 36740
Molecular Formula : C24H29ClN2O6
Molecular Weight : 476.95
N,N-Bis(2-chloroethyl)-p-toluenesulfonamide
Catalogue No.:PA 03 36750
Molecular Formula : C11H15Cl2NO2S
Molecular Weight : 296.21
(S)-1-(p-Chlorobenzhydryl)piperazine;
Catalogue No.:PA 30 0511000
DL-Carnitine
Catalogue No.:PA 30 0511001
Cetirizine Glycerol Ester
Catalogue No.:PA 30 0511002
Molecular Formula : C24H31ClN2O5
Molecular Weight : 462.97
2-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]propanoic acid ethyl ester
Catalogue No.:PA 30 0511003
Molecular Formula : C11H24O3Si
Molecular Weight : 232.4
Cetirizine-d8
Catalogue No.:PA STI 088702
Molecular Formula : C21H17D8ClN2O3
Molecular Weight : 396.94
Tert-Butyl Cetirizine
Catalogue No.:PA 30 0511004
Molecular Formula : C25H33ClN2O3
Molecular Weight : 445
Cetirizine Allyl Ester
Catalogue No.:PAI 03 001511
Molecular Formula : C24H29ClN2O3
Molecular Weight : 428.96
2-(2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetyl chloride
Catalogue No.:PAI 03 001512
Molecular Formula : C21H24Cl2N2O2
Molecular Weight : 407.34
D,L-Carnitine-d3 Chloride
Catalogue No.:PA STI 088881
Molecular Formula : C7H13D3ClNO3
Molecular Weight : 200.68
1-((4-Chlorophenyl)(phenyl)methyl)-4-(4-methoxybenzyl)piperazine malonate
Catalogue No.:PA 30 0511006
Molecular Formula : C28H31ClN2O5
Molecular Weight : 511.02
Cetirizine sorbitol ester
Catalogue No.:PA 30 0511005
Molecular Formula : C27H37ClN2O8
Molecular Weight : 553.05
1-Hydroxypropan-2-yl 2-(2-(4-((R)-(4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetate
Catalogue No.:PAI 03 001513
Molecular Weight : 446.2
Ethyl 2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)acetate
Catalogue No.:PA 30 0511007
Molecular Formula : C21H25ClN2O2
Molecular Weight : 372.89
(R)-2-(4-((4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethanol
Catalogue No.:PA I 00015
(4-Chlorophenyl)(phenyl)methyl methanesulfonate
Catalogue No.:PAI 03 001514
Molecular Formula : C14H13ClO3S
Molecular Weight : 296.77
(R)-De(carboxymethyl) Cetirizine Ethanol Dihydrochloride
Catalogue No.:PA 30 0511008
Molecular Formula : C19H25Cl3N2O
Molecular Weight : 403.77
(2-(4-Benzhydrylpiperazin-1-yl)ethan-1-ol dihydrochloride)
Catalogue No.:PA 03 0361001
Molecular Formula : C19H26Cl2N2O
Molecular Weight : 369.33
[2-(2-Aminoethoxy)ethoxy]acetic Acid
Catalogue No.:PA 03 0361002
Molecular Formula : C6H13NO4
Molecular Weight : 163.17
1-((4-Chlorophenyl)(phenyl)methyl)-4-nitrosopiperazine
Catalogue No.:PA 30 0511009
Molecular Formula : C17H18ClN3O
Molecular Weight : 315.8
Cetirizine impurity A (IMPC061)
Catalogue No.:PA IMPC061
1-(2-(2-(1-Chloroethoxy)ethoxy)ethyl)-4-((4-chlorophenyl)(phenyl)methyl)piperazine
Catalogue No.:PA 30 0511010
Molecular Formula : C23H30Cl2N2O2
Molecular Weight : 437.41
(4-Chlorophenyl)(phenyl)methanamine
Catalogue No.:PA 30 0511011
Molecular Formula : C13H12ClN
Molecular Weight : 217.7
(S)-(4-Chlorophenyl)(phenyl)methanamine
Catalogue No.:PA 30 0511012
(R)-3-Carboxy-2-(dodecanoyloxy)-N,N,N-trimethylpropan-1-aminium Chloride
Catalogue No.:PA 30 0511013
Molecular Formula : C19H38ClNO4
Molecular Weight : 379.97
Cetirizine Bromo Impurity
Catalogue No.:PA 30 0511014
Molecular Formula : C21H25BrN2O3
Molecular Weight : 433.35
(2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 2-(2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetate
Catalogue No.:PAI 03 001515
Molecular Formula : C27H35ClN2O5
Molecular Weight : 503.04
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