Cetirizine
Cetirizine Impurities
High-purity reference standards for HPLC analysis, stability studies, and quality control.
Comprehensive Offerings
Alfa Omega Pharma provides certified reference substances, degradation products, and validated analytical methods fully compliant with pharmacopeial guidelines (USP, EP, ICH).
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We specialize in the custom synthesis of Impurities, Metabolites, and stable-labelled isotopes tailored to your specific research and regulatory needs.
Key Available Impurities & Derivatives:
- Cetirizine Impurity A (RS)1-[(4- chlorophenyl)(phenyl)methyl]piperazine
- Cetirizine Impurity B (RS){4-[(4- chlorophenyl)(phenyl)methyl]piperazin- 1-yl}acetic acid
- Cetirizine Impurity C {2-[4-(RS)(2- chlorobenzyl)(phenyl)methyl)piperazin- 1-yl]ethoxy}acetic acid
- Cetirizine Impurity D 1,4 Bis-[(4- chlorophenyl)(phenyl)methyl]piperazine
- Cetirizine Impurity E (RS)-2-[2-[2[4-[(4-Chlorophenyl)phenyl methyl]piperazin-1-yl]ethoxy]ethoxy]acetic acid (Ethoxy citrizine)
- Cetirizine Impurity F [2-[4-(Diphenylmethyl)piperazin-1- yl]ethoxy]acetic Acid
- Cetirizine Impurity G 2-{4-(RS)[(4- chlorophenyl)(phenyl)methyl]piperazin- 1-yl}ethanol
- Cetirizine Isopropyl ester Isopropyl {2-[4-(RS)(4- chlorobenzyl)phenyl methyl]piperazin-1- yl]ethoxy}acetate
- Cetirizine Ethyl ester Ethyl {2-[4-(RS)(4-chlorobenzyl)phenyl methyl]piperazin-1-yl]ethoxy}acetate
- 4-Chlorobenzhydrol (4-chlorophenyl)(phenyl)methanol
- 4-Chlorobenophenone (4-chlorophenyl)(phenyl)methanone
- Cetirizine Ethyl Ester Impurity
- Cetirizine Methyl Ester Impurity
- Cetirizine Impurity-A/ Levocetirizine Impurity-A
- Cetirizine EP Impurity B (Cetirizine Impurity-B)
- Cetirizine EP Impurity C (Cetirizine Impurity C)
- Cetirizine EP Impurity D (Cetirizine Impurity-D)
- Cetirizine EP Impurity E (Cetirizine Impurity E)
- Cetirizine Impurity F
- Cetirizine EP Impurity G (Cetirizine Impurity G)
- Cetirizine Glycerol Ester Impurity HCl
- Cetirizine N-Oxide Di HCl
- Cetirizine propane diol ester/(R)- Cetirizine Polyethylene Glycol Ester (Cetirizine Propylene Glycol Ester-1)
- Cetirizine Dihydrochloride
- Cetirizine (N-1)
- Cetirizine Lactose Ester Impurity
- Quaternary Amine impurity/Cetirizine Imp
- Cetirizine Impurity (n-1) stg
- Cetirizine impurity E
- N-Nitroso Cetirizine EP Impurity - A
From Discovery to delivery, High purity certified impurity standards.
Cetirizine Impurity (n-1) stg
Product Details Overview Shipping Storage Downloads Cetirizine Impurity (n-1) st..
![Cetirizine Impurity A
(RS)1-[(4-
chlorophenyl)(phenyl)methyl]piperazine](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3184-74x74.png)
![Cetirizine Impurity A
(RS)1-[(4-
chlorophenyl)(phenyl)methyl]piperazine](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3184-270x270.png "Cetirizine Impurity A
(RS)1-[(4-
chlorophenyl)(phenyl)methyl]piperazine")
Cetirizine Impurity A (RS)1-[(4- chlorophenyl)(phenyl)methyl]piperazine
Product Details Overview Shipping Storage Downloads Cetirizine Impurity A (RS)1-..
![Cetirizine Impurity B
(RS){4-[(4-
chlorophenyl)(phenyl)methyl]piperazin- 1-yl}acetic acid](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3185-74x74.png)
![Cetirizine Impurity B
(RS){4-[(4-
chlorophenyl)(phenyl)methyl]piperazin- 1-yl}acetic acid](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3185-270x270.png "Cetirizine Impurity B
(RS){4-[(4-
chlorophenyl)(phenyl)methyl]piperazin- 1-yl}acetic acid")
Cetirizine Impurity B (RS){4-[(4- chlorophenyl)(phenyl)methyl]piperazin- 1-yl}acetic acid
Product Details Overview Shipping Storage Downloads Cetirizine Impurity B (RS){4..
![Cetirizine Impurity C
{2-[4-(RS)(2-
chlorobenzyl)(phenyl)methyl)piperazin- 1-yl]ethoxy}acetic acid](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3186-74x74.png)
![Cetirizine Impurity C
{2-[4-(RS)(2-
chlorobenzyl)(phenyl)methyl)piperazin- 1-yl]ethoxy}acetic acid](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3186-270x270.png "Cetirizine Impurity C
{2-[4-(RS)(2-
chlorobenzyl)(phenyl)methyl)piperazin- 1-yl]ethoxy}acetic acid")
Cetirizine Impurity C {2-[4-(RS)(2- chlorobenzyl)(phenyl)methyl)piperazin- 1-yl]ethoxy}acetic acid
Product Details Overview Shipping Storage Downloads Cetirizine Impurity C {2-[4-..
![Cetirizine Impurity D
1,4 Bis-[(4-
chlorophenyl)(phenyl)methyl]piperazine](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3187-74x74.png)
![Cetirizine Impurity D
1,4 Bis-[(4-
chlorophenyl)(phenyl)methyl]piperazine](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3187-270x270.png "Cetirizine Impurity D
1,4 Bis-[(4-
chlorophenyl)(phenyl)methyl]piperazine")
Cetirizine Impurity D 1,4 Bis-[(4- chlorophenyl)(phenyl)methyl]piperazine
Product Details Overview Shipping Storage Downloads Cetirizine Impurity D 1,4 Bi..
![Cetirizine Impurity E
(RS)-2-[2-[2[4-[(4-Chlorophenyl)phenyl methyl]piperazin-1-yl]ethoxy]ethoxy]acetic acid (Ethoxy citrizine)](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3188-74x74.png)
![Cetirizine Impurity E
(RS)-2-[2-[2[4-[(4-Chlorophenyl)phenyl methyl]piperazin-1-yl]ethoxy]ethoxy]acetic acid (Ethoxy citrizine)](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3188-270x270.png "Cetirizine Impurity E
(RS)-2-[2-[2[4-[(4-Chlorophenyl)phenyl methyl]piperazin-1-yl]ethoxy]ethoxy]acetic acid (Ethoxy citrizine)")
Cetirizine Impurity E (RS)-2-[2-[2[4-[(4-Chlorophenyl)phenyl methyl]piperazin-1-yl]ethoxy]ethoxy]acetic acid (Ethoxy citrizine)
Product Details Overview Shipping Storage Downloads Cetirizine Impurity E (RS)-2..
![Cetirizine Impurity F
[2-[4-(Diphenylmethyl)piperazin-1- yl]ethoxy]acetic Acid](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3189-74x74.png)
![Cetirizine Impurity F
[2-[4-(Diphenylmethyl)piperazin-1- yl]ethoxy]acetic Acid](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3189-270x270.png "Cetirizine Impurity F
[2-[4-(Diphenylmethyl)piperazin-1- yl]ethoxy]acetic Acid")
Cetirizine Impurity F [2-[4-(Diphenylmethyl)piperazin-1- yl]ethoxy]acetic Acid
Product Details Overview Shipping Storage Downloads Cetirizine Impurity F [2-[4-..
![Cetirizine Impurity G
2-{4-(RS)[(4-
chlorophenyl)(phenyl)methyl]piperazin- 1-yl}ethanol](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3190-74x74.png)
![Cetirizine Impurity G
2-{4-(RS)[(4-
chlorophenyl)(phenyl)methyl]piperazin- 1-yl}ethanol](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3190-270x270.png "Cetirizine Impurity G
2-{4-(RS)[(4-
chlorophenyl)(phenyl)methyl]piperazin- 1-yl}ethanol")
Cetirizine Impurity G 2-{4-(RS)[(4- chlorophenyl)(phenyl)methyl]piperazin- 1-yl}ethanol
Product Details Overview Shipping Storage Downloads Cetirizine Impurity G 2-{4-(..
Cetirizine Impurity-A/ Levocetirizine Impurity-A
Product Details Overview Shipping Storage Downloads Cetirizine Impurity-A/ Levoc..
![Cetirizine Isopropyl ester
Isopropyl {2-[4-(RS)(4- chlorobenzyl)phenyl methyl]piperazin-1- yl]ethoxy}acetate](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3191-74x74.png)
![Cetirizine Isopropyl ester
Isopropyl {2-[4-(RS)(4- chlorobenzyl)phenyl methyl]piperazin-1- yl]ethoxy}acetate](https://www.alfaomegapharma.com/image/cache/catalog/demo/AOP/S1-3191-270x270.png "Cetirizine Isopropyl ester
Isopropyl {2-[4-(RS)(4- chlorobenzyl)phenyl methyl]piperazin-1- yl]ethoxy}acetate")
Cetirizine Isopropyl ester Isopropyl {2-[4-(RS)(4- chlorobenzyl)phenyl methyl]piperazin-1- yl]ethoxy}acetate
Product Details Overview Shipping Storage Downloads Cetirizine Isopropyl ester I..