Impurity reference standards
Loratadine impurities & reference standards
Characterised Loratadine impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
43reference materials
2isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Loratadine
79794-75-5 · C22H23ClN2O2
![4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbonyl]-1-piperidinecarboxylic Acid Ethyl Ester chemical structure](/media/structures/DMIPADIONWGFNC-UHFFFAOYSA-N.svg)
4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbonyl]-1-piperidinecarboxylic Acid Ethyl Ester
- CAS
- 107256-32-6
- Formula
- C22H25ClN2O3
- MW
- 400.9 g/mol
VQ-031634
![8-Chloro-11-fluoro-11-(1-methylpiperidin-4-yl)-6,11-dihydro-5H-benzo[5,6]-cyclohepta[1,2-b]pyridine chemical structure](/media/structures/IJBTXWXMLWHVCI-UHFFFAOYSA-N.svg)
8-Chloro-11-fluoro-11-(1-methylpiperidin-4-yl)-6,11-dihydro-5H-benzo[5,6]-cyclohepta[1,2-b]pyridine
- CAS
- 125743-81-9
- Formula
- C20H22ClFN2
- MW
- 344.9 g/mol
VQ-036629
![Ethyl 4-(8-chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate chemical structure](/media/structures/NNEKZPHQSXPSRP-UHFFFAOYSA-N.svg)
Ethyl 4-(8-chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate
- CAS
- 133330-56-0
- Formula
- C22H21ClN2O2
- MW
- 380.9 g/mol
VQ-031626
FAQs — Loratadine impurities
Which Loratadine impurities do you supply?
We list 43 Loratadine-related reference materials, including process impurities, degradation products, 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 Loratadine 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 Loratadine 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 Loratadine impurity standards
We reply within one business day with price, pack options, lead time and documentation.