Ergocalciferol EP Impurity E CAS 115-61-7
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 115-61-7 |
| Molecular Formula | C28H44O |
| Molecular Weight | 396.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ergocalciferol EP Impurity E (CAS 115-61-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C28H44O. Molecular weight: 396.65 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C28H44O |
| Molecular Weight | 396.65 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ergocalciferol Standards
- Ergocalciferol EP Impurity D (CAS 469-06-7)
- Ergocalciferol EP Impurity A (CAS 51744-66-2)
- Ergocalciferol EP Impurity B (CAS 57-87-4)
- Ergocalciferol EP Impurity F (CAS CATO-C4X-177922)
- Ergocalciferol Impurity 4 (Mixture of Diastereomers) (CAS CATO-C4X-17794)
- Ergocalciferol Impurity 01 (CAS 55812-80-1)
- Ergocalciferol Impurity 3 (CAS 5757-76-6)
Recommended Standards
- Cholecalciferol Impurity 26 (CAS CATO-C4X-158626)
- Previtamin D2 (~90%) (CAS 21307-05-1)
- Lumisterol (CAS 474-69-1)
- Avanafil Impurity 49 (CAS CATO-C4X-111849)
- Desloratadine Impurity 34 (CAS CATO-C4X-143034)
- N-(5-Hydroxy-1H-indazol-3-yl)-3-phenylpropanamide (CAS 511204-84-5)
- Hexanedioic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2,5-furandione and 1,2-propanediol (CAS 42133-47-1)
- N-Cyclohexyl-2-[4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepin-2-yl]acetamide (CAS 1775350-76-9)
- 2-(tert-Butyl) 9-ethyl 8-oxo-2,7-diazaspiro[4.4]nonane-2,9-dicarboxylate (CAS 1445951-14-3)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
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