Cholecalciferol EP Impurity C CAS 5226-01-7
| CAS No. | 5226-01-7 |
| Molecular Formula | C27H44O |
| Molecular Weight | 384.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cholecalciferol EP Impurity C (CAS 5226-01-7, C27H44O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cholecalciferol EP Impurity C (C27H44O) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 384.64 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Cholecalciferol EP Impurity C under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C27H44O |
| Molecular Weight | 384.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Cholecalciferol Standards
- trans-Cholecalciferol (CAS 1260149-80-1)
- Cholecalciferol EP Impurity A (CAS 22350-41-0)
- Cholecalciferol Impurity 15 (CAS 42607-12-5)
- Cholecalciferol EP Impurity B (CAS 434-16-2)
- Cholecalciferol EP Impurity D (CAS 22350-43-2)
- Cholecalciferol EP Impurity E (CAS 17592-07-3)
- Cholecalciferol-d6 (Vitamin D3-d6) (CAS 118584-54-6)
- Cholecalciferol Impurity 26 (CAS CATO-C4X-158626)
Recommended Standards
- Precalciferol (Previtamin D3) (CAS 1173-13-3)
- Vitamin D3 Impurity 4 (CAS 573951-39-0)
- Cholesterol EP Impurity C (CAS 651-54-7)
- Ethyl 2-(5,6-dichloro-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazol-1-yl)acetate (CAS 337920-66-8)
- Benserazide Impurity 11 (CAS CATO-C4X-142711)
- Theophylline impurity 7 (CAS CATO-C4X-18237)
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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 18665070610 / Nicole.chen@cato-chem.com