Impurity reference standards
Cetirizine impurities & reference standards
Characterised Cetirizine impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
59reference materials
1nitrosamine impurities
3isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Cetirizine
83881-51-0 · C21H25ClN2O3
(R)-2-(4-((4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethanol
- CAS
- 705289-61-8
- Formula
- C19H23ClN2O
- MW
- 330.8 g/mol
VQ-044081
(R)-De(carboxymethoxy) Cetirizine Acetic Acid
- CAS
- 942193-17-1
- Formula
- C19H21ClN2O2
- MW
- 344.8 g/mol
VQ-029732
(R)-De(carboxymethoxy) Cetirizine Acetic Acid Hydrochloride
- CAS
- 942132-30-1
- Formula
- C19H22Cl2N2O2
- MW
- 381.3 g/mol
VQ-026430
![(S)-(+)-1-[(4-Chlorophenyl)phenylmethyl]piperazine chemical structure](/media/structures/UZKBSZSTDQSMDR-KRWDZBQOSA-N.svg)
(S)-(+)-1-[(4-Chlorophenyl)phenylmethyl]piperazine
- CAS
- 439858-21-6
- Formula
- C17H19ClN2
- MW
- 286.8 g/mol
VQ-029734
![1-[(2-Chlorophenyl)phenylmethyl]piperazine chemical structure](/media/structures/RLZPNIGECDMAJH-UHFFFAOYSA-N.svg)
![1-[(4-Chlorophenyl)phenylmethyl]piperazine-d8 chemical structure](/media/structures/UZKBSZSTDQSMDR-BGKXKQMNSA-N.svg)
4-Benzhydryl-1-piperazineethanol Dihydrochloride
- CAS
- 108983-83-1
- Formula
- C19H26Cl2N2O
- MW
- 369.3 g/mol
VQ-024912
Cetirizine 2-oxoethoxy-acetic acid impurity
- CAS
- 1172851-76-1
- Formula
- C21H23ClN2O4
- MW
- 402.87 g/mol
VQ-037994
FAQs — Cetirizine impurities
Which Cetirizine impurities do you supply?
We list 59 Cetirizine-related reference materials, including process impurities, degradation products, nitrosamine impurities, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Cetirizine impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Cetirizine impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Cetirizine impurity standards
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