Hydroxychloroquine impurity 65 CAS CATO-C4X-183565
| CAS No. | CATO-C4X-183565 |
| Molecular Formula | C20H30ClN3O |
| Molecular Weight | 363.92 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 363.92 g/mol gives Hydroxychloroquine impurity 65 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Hydroxychloroquine impurity 65 (CAS CATO-C4X-183565) is a certified pharmaceutical impurity reference standard with the molecular formula C20H30ClN3O and a molecular weight of 363.92 g/mol.
Hydroxychloroquine impurity 65 (C20H30ClN3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Hydroxychloroquine impurity 65 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H30ClN3O |
| Molecular Weight | 363.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Hydroxychloroquine Standards
- Hydroxychloroquine impurity 64 (CAS CATO-C4X-183564)
- Hydroxychloroquine Impurity 22 (CAS CATO-C4X-183522)
- Hydroxychloroquine Impurity 89 (CAS CATO-C4X-183589)
- Hydroxychloroquine EP Impurity A (CAS 1449223-88-4)
- Hydroxychloroquine impurity 81 (CAS CATO-C4X-183581)
- Hydroxychloroquine Impurity 91 (CAS CATO-C4X-183591)
- Hydroxychloroquine Impurity 31 (CAS CATO-C4X-183531)
- Hydroxychloroquine Impurity 7 (CAS 47493-14-1)
Recommended Standards
- (4-Bromo-3-(difluoromethyl)-5-iodopyridin-2-yl)methanol (CAS 1804670-88-9)
- 7-Bromo-2,4-dichloro-8-fluoro-6-(trifluoromethyl)quinazoline (CAS 2134618-53-2)
- 4-Bromo-6-(difluoromethyl)-3-iodo-2-methoxypyridine (CAS 1804889-48-2)
- 4-Chloro-N-(6-(methylthio)benzo[d]thiazol-2-yl)benzo[d]thiazol-2-amine (CAS 890940-19-9)
- Palbociclib Impurity 32 (CAS 1082876-26-3)
- Remdesivir Impurity 2 (CAS 1355049-94-3)
- Benproperine Impurity 1 (CAS CATO-C4X-32461)
- N-(3-Isopropoxybenzyl)-2-propanamine (CAS 1040683-60-0)
- 5-Fluoro-4-methoxy-2-nitrobenzonitrile (CAS 2168328-64-9)
- n-mEthyl-n-(1,2,3,4-tetrahydro-1-naphthalenyl)sulfamide (CAS 1281140-09-7)
- 3-Deoxy-3-fluoro-D-mannose (CAS 87764-46-3)
- 4-(2-(3-Nitro-1H-pyrazol-1-yl)ethyl)morpholine (CAS 1006568-46-2)
- 1-Methyl-4-[1-(4-nitrophenyl)-4-piperidinyl]piperazine (CAS 959795-69-8)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
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