Cyproheptadine EP Impurity C Hydrochloride CAS 4046-24-6
| CAS No. | 4046-24-6 |
| Molecular Formula | C21H23NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 341.88 g/mol gives Cyproheptadine EP Impurity C Hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Cyproheptadine EP Impurity C Hydrochloride (CAS 4046-24-6) is a certified pharmaceutical impurity reference standard with the molecular formula C21H23NOHCl and a molecular weight of 341.88 g/mol.
Cyproheptadine EP Impurity C Hydrochloride (C21H23NOHCl) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Cyproheptadine EP Impurity C Hydrochloride 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 | C21H23NO HCl |
| Molecular Weight | 341.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Cyproheptadine Standards
- Cyproheptadine N-Oxide (CAS 100295-63-4)
- Cyproheptadine impurity 15 (CAS 101596-48-9)
- Cyproheptadine (CAS 129-03-3)
- Cyproheptadine N-Desmethyl (CAS 14051-46-8（free base）)
- Cyproheptadine impurity 11 (CAS 19431-71-1)
- Cyproheptadine Impurity 2 (CAS 2222-33-5)
- Cyproheptadine EP Impurity A (CAS 256-81-5)
- Cyproheptadine-d3 (CAS 2712455-05-3)
Recommended Standards
- Ivacaftor Impurity 7 (CAS 52980-28-6)
- Mianserin Impurity 77 (CAS CATO-C4X-136977)
- Ilaprazole Impurity 143 (CAS 2230077-52-6)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
- Lincomycin Impurity 19 (CAS CATO-C4X-134219)
- 1-(2-(2-(3-Hydroxybenzylidene)hydrazinyl)-4-methylthiazol-5-yl)ethan-1-one (CAS 464211-86-7)
- 1,3-cyclooctadiene (CAS 1700-10-3)
- Ferrostatin 1 (CAS 347174-05-4)
- H-D-Phe-D-Phe-D-Leu-D-Lys-γ-Pip-D-Phe-D-Phe-D-Leu-D-Lys-γ-Pip-OH (CAS CATO-CPTD788717)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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