Cetirizine Impurity N19 CAS 113740-61-7
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 113740-61-7 |
| Molecular Formula | C19H21ClN2O2 |
| Molecular Weight | 344.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cetirizine Impurity N19 (CAS 113740-61-7) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C19H21ClN2O2. Molecular weight: 344.84 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C19H21ClN2O2 |
| Molecular Weight | 344.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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 |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Cetirizine Standards
- Cetirizine Dihydrochloride EP Impurity B (CAS 942193-17-1)
- Cetirizine Impurity 37 (CAS CATO-C4X-158237)
- Cetirizine EP Impurity F (CAS 83881-53-2)
- Cetirizine EP Impurity G (CAS 109806-71-5)
- Cetirizine Impurity 26 (CAS CATO-C4X-158226)
- Cetirizine Impurity 36 (CAS CATO-C4X-158236)
- Cetirizine Impurity 35 (CAS CATO-C4X-158235)
- Cetirizine USP Related Compound C (CAS 83881-37-2)
Recommended Standards
- Clotrimazole (CAS 23593-75-1)
- N-Acetyl Metoclopramide-d3 (CAS 105314-01-0)
- Clotrimazole EP Impurity B (CAS 23593-71-7)
- Fulvestrant impurity 55 (CAS CATO-C4X-191755)
- Finerenone Impurity 182-d5 (CAS CATO-C4X-2880182)
- (R)-2-(3-bromo-5-methoxyphenyl)piperidine (CAS 1388718-90-8)
- 2-(3-Phenyl-1H-pyrazol-5-yl)quinoline (CAS 1632164-72-7)
- Ketoprofen Lysinate (CAS 57469-78-0)
- 6-Cyclopropyl-1-(2,2-difluoroethyl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1018143-42-4)
- Des-[Oct-γ-Glu-AEEA-AEEA]-Semaglutide (CAS CATO-C4X-2226112)
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 13829788188 / jacky.chen@cato-chem.com