Obeticholic Acid Impurity 40 CAS 1654780-32-1
| CAS No. | 1654780-32-1 |
| Molecular Formula | C27H44O4 |
| Molecular Weight | 432.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 432.64 g/mol gives Obeticholic Acid Impurity 40 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Obeticholic Acid Impurity 40 (CAS 1654780-32-1) is a certified pharmaceutical impurity reference standard with the molecular formula C27H44O4 and a molecular weight of 432.64 g/mol.
Obeticholic Acid Impurity 40 (C27H44O4) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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.
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.
CATO manufactures Obeticholic Acid Impurity 40 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 | C27H44O4 |
| Molecular Weight | 432.64 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.) | 1993 |
Related Obeticholic Standards
- Obeticholic Acid Impurity 39 (CAS 462122-38-9)
- Obeticholic Acid Impurity 31 (CAS 951694-73-8)
- Obeticholic Acid Impurity 27 (CAS 863239-59-2)
- Obeticholic Acid impurity 38 (CAS CATO-C4X-115338)
- Obeticholic Acid-d5 (CAS 1992000-80-2)
- Obeticholic Acid (CAS 459789-99-2)
- Obeticholic Acid Impurity 1 (CAS 865244-30-0)
- Obeticholic Acid Impurity 2 (CAS 915038-27-6)
Recommended Standards
- Paricalcitol Impurity 44 (CAS CATO-C4X-138744)
- CAS 2260669-24-5 (CAS 2260669-24-5)
- Calcitriol impurity 40 (CAS CATO-C4X-151040)
- Decyl nonyl phthalate (CAS 96507-76-5)
- Moxifloxacin Impurity 33 (CAS 849770-49-6)
- Entacapone EP Impurity B (CAS 1215039-66-9)
- Lenvatinib Impurity 87 (CAS CATO-C4X-114087)
- 1-(2-Bromo-4-fluorophenyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 1487229-82-2)
- 1-(4-Nitrobenzyl)piperidine-2,4-dione (CAS 99539-92-1)
- N-(4-chlorophenyl)-5-((4-chlorophenyl)thio)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 321533-82-8)
- 5-Fluoro-2-((1-methyl-1H-imidazol-2-yl)methoxy)benzoic acid (CAS 1363405-32-6)
- Glycerol Phosphate (CAS 12040-65-2)
- Trihexyphenidyl Impurity 21 (CAS CATO-C4X-185721)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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