Cetirizine Impurity C18 CAS 13391-39-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 13391-39-4 |
| Molecular Formula | C13H10Cl2 |
| Molecular Weight | 237.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cetirizine Impurity C18 (CAS 13391-39-4) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C13H10Cl2. Molecular weight: 237.12 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C13H10Cl2 |
| Molecular Weight | 237.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl-containing |
Related Cetirizine Standards
- Cetirizine Impurity 28 (CAS CATO-C4X-158228)
- Cetirizine Impurity 10 (CAS 1016-78-0)
- Cetirizine Impurity 22 (CAS 13391-38-3)
- Cetirizine impurity N1 (CAS 58023-19-1)
- Cetirizine EP Impurity A (CAS 303-26-4)
- Cetirizine Impurity Y (CAS 34605-45-3)
- Cetirizine Impurity 35 (CAS CATO-C4X-158235)
- Cetirizine Impurity 36 (CAS CATO-C4X-158236)
Recommended Standards
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- Ambroxol Impurity 38 hydrochloride (CAS 2356152-56-0)
- 8-Methoxy-1,2,3,4-tetrahydro-quinoline (CAS 53899-17-5)
- (S)-1-(D-Phenylalanyl)-N-((S)-5-guanidino-1-((4-nitrophenyl)amino)-1-oxopentan-2-yl)piperidine-2-carboxamide (CAS 64815-81-2)
- 4-Fluoro-N-[6-(morpholin-4-yl)pyridin-3-yl]benzamide (CAS 383146-19-8)
- [S(R)]-N-[(S)-[4-(1,1-Dimethylethyl)phenyl][5-(diphenylphosphino)-9,9-dimethyl-9H-xanthen-4-yl]methyl]-2-methyl-2-propanesulfinamide (CAS 2160535-59-9)
- D-Tyr10-Tirzepatide (CAS CATO-CPTD788922)
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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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com