Cetirizine Impurity 29 CAS 62084-35-9
| CAS No. | 62084-35-9 |
| Molecular Formula | C26H20Cl2O |
| Molecular Weight | 419.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cetirizine Impurity 29 is closely related to a steroid core, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cetirizine Impurity 29 (CAS 62084-35-9) is a certified pharmaceutical impurity reference standard with the molecular formula C26H20Cl2O and a molecular weight of 419.34 g/mol.
Based on its molecular formula C26H20Cl2O, Cetirizine Impurity 29 contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 419.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 29 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 | C26H20Cl2O |
| Molecular Weight | 419.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ＞95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
Related Cetirizine Standards
- Cetirizine Impurity 30 (CAS CATO-C4X-158230)
- rac Cetirizine-d8 N-Oxide (CAS 1216444-13-1)
- Cetirizine Impurity C127 (CAS 1391052-52-0)
- Cetirizine EP Impurity E (CAS 682323-77-9)
- Cetirizine Dihydrochloride EP Impurity E (CAS CATO-C4X-108351)
- rac Cetirizine N-Oxide (Mixture of Diastereomers) (CAS 1076199-80-8)
- Cetirizine Impurity 15 (CAS CATO-C4X-158215)
- Cetirizine-d8 (CAS 774596-22-4)
Recommended Standards
- 4-Bromo-N-(2-(2,5-dimethyl-1H-pyrrol-1-yl)benzyl)benzenesulfonamide (CAS 383147-66-8)
- Methyl 2-phenyl-2-(2-(3-(3-(trifluoromethyl)phenyl)-1,2,4-oxadiazol-5-yl)acetamido)acetate (CAS 1024594-48-6)
- 4-(3,3-Dimethylbutan-2-yl) 2-(perfluorophenyl) 3-methyl-1H-pyrrole-2,4-dicarboxylate (CAS 54280-71-6)
- Decyl 2-[1-(2-bromoacetyl)-3-oxo-2-piperazinyl]-acetate (CAS 1219219-07-4)
- Baricitinib Impurity 117 (CAS CATO-C4X-2260117)
- Fluticasone Impurity 75 (CAS CATO-C4X-165075)
- Denaverine Impurity 5 (CAS CATO-C4X-24125)
- (4,6-Dimethyl-2-pyridinyl)acetic acid (CAS 856857-25-5)
- 5-Cyclopropoxy-2-methoxybenzamide (CAS 1243450-80-7)
- N-(4-((4-Cyclopentylpiperazin-1-yl)sulfonyl)benzyl)cyclopentanamine (CAS 1336912-38-9)
- {2-methylimidazo[1,2-a]pyridin-7-yl}methanamine (CAS 1216113-38-0)
- 5-((4-((6-(2,2,2-Trifluoroethyl)thieno[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)methyl)-1H-indole-2-carbonitrile (CAS 1628316-74-4)
- N'-[(1E)-(3-Bromophenyl)methylidene]-4-[(3,4-dichlorophenyl)methoxy]benzohydrazide (CAS 303987-28-2)
- endo-Arg30-Semaglutide (CAS CATO-C4X-2226281)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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