Obeticholic Acid Impurity 43 CAS CATO-C4X-115343
| CAS No. | CATO-C4X-115343 |
| Molecular Formula | C28H48O4Si |
| Molecular Weight | 476.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Obeticholic Acid Impurity 43 (CAS CATO-C4X-115343), a pharmacopoeial impurity reference standard (molecular formula C28H48O4Si, MW 476.76 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Obeticholic Acid Impurity 43 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 476.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Obeticholic Acid Impurity 43 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 | C28H48O4Si |
| Molecular Weight | 476.76 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Obeticholic Standards
- Obeticholic Acid Impurity 13 (CAS CATO-C4X-115323)
- Obeticholic Acid Impurity 41 (CAS CATO-C4X-115341)
- Obeticholic Acid Impurity 50 (CAS CATO-C4X-115350)
- Obeticholic Acid Impurity 19 (CAS 863239-60-5)
- Obeticholic Acid Impurity 46 (CAS 2241648-47-3)
- Obeticholic Acid Impurity 20 (CAS CATO-C4X-115320)
- Obeticholic Acid Impurity 42 (CAS CATO-C4X-115342)
- Obeticholic Acid Impurity 52 (CAS 60354-42-9)
Recommended Standards
- Mmucpp (CAS 93134-82-8)
- Ursodeoxycholic Acid impurity 76 (CAS CATO-C4X-142276)
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- Benzyltris(3-phenylpropyl)silane (CAS 18759-03-0)
- Famciclovir Impurity 3 (CAS CATO-C4X-16423)
- Labetalol Impurity 22 (CAS 40187-51-7)
- Pyridoxine Impurity 78 (CAS CATO-C4X-187778)
- 4-(2,2-Difluoroethoxy)cyclohexan-1-one (CAS 1564672-78-1)
- 2-{5-[2-(methylsulfanyl)phenyl]-1,2,4-oxadiazol-3-yl}pyridine (CAS 866130-97-4)
- 5-Bromo-2,3-dioxoindoline-7-carboxylic acid (CAS 1452166-15-2)
- 4-(1,1-Dioxidothiomorpholino)butanoic acid (CAS 933738-42-2)
- 3-(4-Chlorophenylsulfanyl)-5-trifluoromethylpyridine-2-carboxylic acid (CAS 773871-64-0)
- 1-((1H-Benzo[d]imidazol-1-yl)methyl)cyclohexan-1-ol (CAS 1355864-44-6)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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