N-Nitroso Cetirizine EP Impurity A CAS 2005-04-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2005-04-1 |
| Molecular Formula | C17H18ClN3O |
| Molecular Weight | 315.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity N-Nitroso Cetirizine EP Impurity A (CAS 2005-04-1) pharmacopoeial impurity standards reference standard. Molecular formula: C17H18ClN3O. Molecular weight: 315.80 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C17H18ClN3O |
| Molecular Weight | 315.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related N Standards
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Recommended Standards
- N-(4-chlorophenyl)-4-phenylpiperazine-1-carboxamide (CAS 549544-51-6)
- Metoclopramide Impurity 42 (CAS 163082-23-3)
- N'-((2-Chloroquinolin-3-yl)methylene)cyclohexanecarbohydrazide (CAS 477733-17-8)
- Famotidine impurity 76 (CAS CATO-C4X-139276)
- Dapagliflozin Impurity 202 (CAS CATO-C4X-1138202)
- (3-Methylbutanoyl)-l-valine (CAS 39741-06-5)
- 2-Isopropyl-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-isoindole (CAS 1149352-16-8)
- 6-Cyclopropyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-amine (CAS 1355173-79-3)
- N-(3-Aminopropyl)-4-fluorobenzamide (CAS 220586-07-2)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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