Cetirizine and Impurities
Cetirizine 3-Chloro Impurity
CAS:1232460-31-9
Formula:
C21H25ClN2O3
Color and Shape:
White To Off-White Solid
Molecular weight:
388.89
Ref: 4Z-C-2027
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(R)-Cetirizine DiHCl (Levocetirizine DiHCl)
CAS:130018-87-0
Formula:
C21H25ClN2O3HCl
Color and Shape:
White To Off-White Solid
Molecular weight:
388.89 2*36.46
Ref: 4Z-C-204
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Cetirizine 6'-O-Lactose Ester DiHCl (Mixture of α and β Isomers)
Formula:
C33H45ClN2O13HCl
Color and Shape:
White To Off-White Solid
Molecular weight:
713.19 2*36.46
Ref: 4Z-C-2049
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Cetirizine EP Impurity C
CAS:83881-59-8
Formula:
C21H25ClN2O3
Color and Shape:
White To Off-White Solid
Molecular weight:
388.89
Ref: 4Z-C-2010
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Cetirizine DiHCl
CAS:83881-52-1
Formula:
C21H25ClN2O3HCl
Color and Shape:
White To Off-White Solid
Molecular weight:
388.89 2 36.46
Ref: 4Z-C-2026
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Cetirizine EP Impurity D
CAS:346451-15-8
Formula:
C30H28Cl2N2
Color and Shape:
White To Off-White Solid
Molecular weight:
487.47
Ref: 4Z-C-2021
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Cetirizine EP Impurity E
CAS:682323-77-9
Formula:
C23H29ClN2O4
Color and Shape:
White To Off-White Solid
Molecular weight:
432.95
Ref: 4Z-C-2011
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Cetirizine-d8 DiHCl
CAS:2070015-04-0
Formula:
C21H17D8ClN2O3HCl
Color and Shape:
Off-White Solid
Molecular weight:
396.94 2*36.46
Ref: 4Z-C-206
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Ref: 4Z-C-203
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Cetirizine EP Impurity G (Cetirizine USP Related Compound G (Free Form), Levocetirizine EP Impurity H)
Formula:
C19H23ClN2O
Color and Shape:
Pale Yellow Semi-Solid (Low M P )
Molecular weight:
330.86
Ref: 4Z-C-2012
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Ref: 4Z-C-2072
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Cetirizine Impurity 16 DiHCl (Mixture of Cetirizine Impurity 12 DiHCl and Cetirizine Impurity 14 DiHCl)
Formula:
C24H31ClN2O4HCl
Color and Shape:
Off-White Solid
Molecular weight:
446.97 2 36.46
Ref: 4Z-C-2043
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Ref: 4Z-C-201
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(R)-Cetirizine-d4 DiHCl (Levocetirizine-d4 DiHCl)
CAS:1133210-23-7
Formula:
C21H21D4ClN2O3HCl
Color and Shape:
White To Off-White Solid
Molecular weight:
392.92 2*36.46
Ref: 4Z-C-205
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Cetirizine Glycerol Ester HCl (Mixture of Isomers)
Formula:
C24H31ClN2O5·HCl
Molecular weight:
462.97 36.46
Ref: 4Z-C-2067
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(R)-Cetirizine Polyethylene Glycol Ester
CAS:1509941-93-8
Formula:
C21H25ClN2O3C2H4On
Color and Shape:
Yellow Oil
Molecular weight:
388.90[44.05]n
Ref: 4Z-C-2031
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Cetirizine USP Related Compound A DiHCl
CAS:246870-46-2
Formula:
C23H29ClN2O3HCl
Color and Shape:
Pale Brown Solid
Molecular weight:
416.95 2*36.46
Ref: 4Z-C-2036
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Cetirizine EP Impurity A (Hydroxyzine USP Related Compound A)
CAS:303-26-4
Formula:
C17H19ClN2
Color and Shape:
Off-White Solid
Molecular weight:
286.80
Ref: 4Z-C-208
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Ref: 4Z-C-2047
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Cetirizine Impurity 17 DiHCl (Mixture of Cetirizine Impurity 9 DiHCl and Cetirizine Impurity 10 DiHCl)
Formula:
C24H31ClN2O4HCl
Molecular weight:
446.97 2*36.46
Ref: 4Z-C-2071
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