Cetirizine Impurity 17 CAS CATO-C4X-158217
| CAS No. | CATO-C4X-158217 |
| Molecular Formula | C25H33ClN2O3 |
| Molecular Weight | 444.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Cetirizine Impurity 17 (C25H33ClN2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Cetirizine Impurity 17 (CAS CATO-C4X-158217) is a certified pharmaceutical impurity reference standard with the molecular formula C25H33ClN2O3 and a molecular weight of 444.99 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Cetirizine Impurity 17 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H33ClN2O3 |
| Molecular Weight | 444.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Cetirizine Standards
- Cetirizine Impurity 16 (CAS CATO-C4X-158216)
- Cetirizine impurity 31 (CAS CATO-C4X-158231)
- Cetirizine Impurity 39 (CAS CATO-C4X-108339)
- (S)-Cetirizine Propanediol Ester (CAS CATO-C4X-158212)
- Cetirizine EP Impurity E (CAS 682323-77-9)
- Cetirizine Dihydrochloride EP Impurity E (CAS CATO-C4X-108351)
- Cetirizine Impurity 34 (Mixture of Diastereomers) (CAS 1243652-36-9)
- Cetirizine Impurity 18 (CAS CATO-C4X-158218)
Recommended Standards
- tert-Butyl Cetirizine (CAS 335017-46-4)
- Ethyl 2-[(6-{[(4-chlorophenyl)sulfanyl]methyl}-2-phenylpyrimidin-4-yl)sulfanyl]propanoate (CAS 303147-17-3)
- 7-Hydroxy-6,8-diiodo-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 160080-87-5)
- Loperamide Impurity 16 (CAS CATO-C4X-178816)
- Lornoxicam Impurity 13 (CAS 2322849-92-1)
- Carfilzomib Impurity 57 (CAS CATO-C4X-102257)
- Neratinib Impurity 3 (CAS CATO-C4X-11343)
- 5-Amino-pyridazine-4-carboxylic acid (CAS 21579-37-3)
- Indoline-4-carbonitrile hydrochloride (CAS 1187933-20-5)
- 1-Propyl-1H-indole-5,6-diol (CAS 373382-94-6)
- 2-Methyl-1-nonylpiperazine (CAS 1240580-35-1)
- 1-Cyclopropyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1267425-40-0)
- 2-(1-methylpiperazin-2-yl)ethan-1-ol (CAS 889939-92-8)
- Acetyl Tetrapeptide- 15 (CAS 928007-64-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com