Eldecalcitol Impurity 45 CAS CATO-C4X-214045
| CAS No. | CATO-C4X-214045 |
| Molecular Formula | C18H30O |
| Molecular Weight | 262.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Eldecalcitol Impurity 45 (C18H30O) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a process- or degradation-related impurity, Eldecalcitol Impurity 45 (CAS CATO-C4X-214045, C18H30O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H30O |
| Molecular Weight | 262.43 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Eldecalcitol Standards
- Eldecalcitol Impurity 57 (CAS 83076-51-1)
- Eldecalcitol Impurity 19 (CAS 75197-02-3)
- Eldecalcitol Impurity 44 (CAS CATO-C4X-214044)
- Eldecalcitol Impurity 56 (CAS 66774-82-1)
- Eldecalcitol Impurity 60 (CAS 66251-18-1)
- Eldecalcitol Impurity 54 (CAS 100928-07-2)
- Eldecalcitol Impurity 51 (CAS 1527523-12-1)
- Eldecalcitol Impurity 32 (CAS 2106839-39-6)
Recommended Standards
- Teprenone Impurity 4 (CAS 1117-51-7)
- Buagafuran (CAS 272126-07-5)
- 4-Dodecylphenol (CAS 27193-86-8)
- 21101-56-4 3,3'-Dihydroxydiphenyl Disulfide 3,3'-Dithiodiphenol B3149 Bis(3-hydroxyphenyl) Disulfide (CAS 21101-56-4)
- Methotrexate Impurity 74 (CAS CATO-C4X-115474)
- Midazolam Impurity 31 (CAS CATO-C4X-150931)
- Phenobarbital Impurity6 (CAS 130690-55-0)
- 4-(tert-Butyl)-2-methylbenzenethiol (CAS 15570-10-2)
- 3,5-Dichloro-N-{[5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl}-N-(4-methoxyphenyl)benzene-1-sulfonamide (CAS 957041-52-0)
- Brompheniramine (CAS 86-22-6)
- N-(2-iodobenzyl)cyclopropanamine (CAS 1353973-73-5)
- Cefoxitin Impurity 38 (CAS CATO-C4X-157838)
- (±)-4-Amino-3-methylbutanoic acid (CAS 71135-23-4)
- Liraglutide Impurity 13 TFA Salt (CAS CATO-C4X-199213)
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