Obeticholic Acid Impurity 51 CAS CATO-C4X-115351
| CAS No. | CATO-C4X-115351 |
| Molecular Formula | C28H46O4 |
| Molecular Weight | 446.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Obeticholic Acid Impurity 51 (CAS CATO-C4X-115351), a pharmacopoeial impurity reference standard (molecular formula C28H46O4, MW 446.66 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C28H46O4, Obeticholic Acid Impurity 51 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 446.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), Obeticholic Acid Impurity 51 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 | C28H46O4 |
| Molecular Weight | 446.66 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 95% |
| 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 |
Related Obeticholic Standards
- Obeticholic Acid-9 (CAS 459789-97-0)
- Obeticholic Acid Impurity 28 (CAS CATO-C4X-115328)
- Obeticholic Acid Impurity 44 (CAS CATO-C4X-115344)
- Obeticholic Acid Impurity 17 (CAS 459789-98-1)
- Obeticholic Acid Impurity 31 (CAS 951694-73-8)
- Obeticholic Acid Impurity 52 (CAS 60354-42-9)
- Obeticholic Acid Impurity 39 (CAS 462122-38-9)
- Obeticholic Acid Impurity 40 (CAS 1654780-32-1)
Recommended Standards
- Phthalic Acid Bis(3,7-dimethyloctyl) Ester (CAS 316808-86-3)
- Menaquinone Impurity 42 (CAS 13798-18-0)
- Menaquinone Impurity 43 (CAS CATO-C4X-207643)
- Nonyl Undecyl Phthalate (CAS 65185-89-9)
- Tolvaptan Impurity 14 (CAS 137973-76-3)
- Macitentan Impurity 32 (CAS 1803092-45-6)
- Nalmefene Impurity 6 (CAS CATO-C4X-12686)
- Paliperidone Impurity 100 (CAS CATO-C4X-1724100)
- 1-(8-Chloro-3-(methylsulfonyl)-6-(trifluoromethyl)imidazo[1,5-a]pyridin-1-yl)-2,2,2-trifluoroethan-1-one (CAS 2379918-52-0)
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- tert-butyl 3,3-difluoro-4,5-dihydro-2H-azepine-1-carboxylate (CAS 2816914-36-8)
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Why CATO?
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