Methyl 7α-Hydroxy-3-ketocholanoate CAS 14773-00-3
| CAS No. | 14773-00-3 |
| Molecular Formula | C25H40O4 |
| Molecular Weight | 404.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 7α-Hydroxy-3-ketocholanoate (CAS 14773-00-3), molecular formula C25H40O4 and molecular weight 404.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 7α-Hydroxy-3-ketocholanoate (C25H40O4) 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 404.58 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C25H40O4 |
| Molecular Weight | 404.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
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Recommended Standards
- 5β-PREGNAN-3α, 20α-DIOL DIACETATE (CAS 1174-69-2)
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- 1,2-Benzenedicarboxylic acid isononyl isooctyl ester (CAS 96532-79-5)
- 6-(Difluoromethyl)-4-fluoro-3-methoxypicolinonitrile (CAS 1805356-35-7)
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- 3-Amino-6-isopropoxypyridine (CAS 52025-36-2)
- Atrasentan Impurity 183 (CAS CATO-C4X-3347183)
- 1-methanesulfonylazetidin-3-amine (CAS 1340300-17-5)
- 1-tert-Butyl 4-Ethyl 3,3-difluoro-4-methylpiperidine-1,4-dicarboxylate (CAS 1334416-35-1)
- 6-(2-Aminoethyl)-4-bromopyridin-2-amine (CAS 1393567-01-5)
- 5-(2-Methylfuran-3-yl)-1,3,4-oxadiazole-2-thiol (CAS 560995-28-0)
- Risedronate Related Compound B (CAS CATO-C4X-17508)
- Amyloid Precursor Frameshift Mutant C-Terminal Peptide trifluoroacetate salt (CAS 189125-14-2)
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