R(-)-Hydroxy chloroquine Diphosphate CAS 158749-75-8
| CAS No. | 158749-75-8 |
| Molecular Formula | C18H26ClN3O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), R(-)-Hydroxy chloroquine Diphosphate 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.
R(-)-Hydroxy chloroquine Diphosphate (CAS 158749-75-8), molecular formula C18H26ClN3OH3O4P and molecular weight 433.87 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, R(-)-Hydroxy chloroquine Diphosphate (C18H26ClN3OH3O4P) contains a steroid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 433.87 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H26ClN3O 2*H3O4P |
| Molecular Weight | 433.87 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 2-Chloro-4-(tributylstannyl)pyridine (CAS 1204580-73-3)
- Ethyl 5-methoxy-3-(1H-pyrrol-1-yl)-1H-indole-2-carboxylate (CAS 902937-21-7)
- 2,2-Difluoro-1-(p-tolyl)ethan-1-one (CAS 704-36-9)
- Methyl 2-amino-3-(2-(pyridin-4-yl)acetamido)benzoate (CAS 1421933-36-9)
- 8-Bromo-3-methoxyquinolin-2(1H)-one (CAS 1434103-24-8)
- Pyridoxine EP Impurity A hydrochloride (CAS 1006-21-9)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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