Obeticholic Acid Impurity 2 CAS 915038-27-6
| CAS No. | 915038-27-6 |
| Molecular Formula | C26H44O4 |
| Molecular Weight | 420.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Obeticholic Acid Impurity 2 (C26H44O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 420.63 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).
CATO supplies Obeticholic Acid Impurity 2 (CAS 915038-27-6), a pharmacopoeial impurity reference standard (molecular formula C26H44O4, MW 420.63 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Obeticholic Acid Impurity 2 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 | C26H44O4 |
| Molecular Weight | 420.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 1987 |
Related Obeticholic Standards
- Obeticholic Acid (CAS 459789-99-2)
- Obeticholic Acid Impurity 1 (CAS 865244-30-0)
- Obeticholic Acid Impurity 3 (CAS 1708092-13-0)
- Obeticholic Acid Impurity 53 (CAS CATO-C4X-115353)
- Obeticholic Acid Impurity 12 (CAS 1885104-64-2)
- Obeticholic Acid Impurity 33 (CAS 1908444-27-8)
- Obeticholic Acid Impurity 34 (CAS CATO-C4X-115334)
- Obeticholic Acid Impurity 4 (CAS 1947343-07-8)
Recommended Standards
- Ethyl 2-(3-(tert-butyl)-4-hydroxyphenoxy)tetradecanoate (CAS 31994-60-2)
- Cholic Acid Impurity 69 (CAS 105660-11-5)
- 4-Pentylphenyl 4-(4-pentylcyclohexyl)benzoate (CAS 81929-44-4)
- Ursodeoxycholic Acid Impurity 117 (CAS 69700-82-9)
- Cholecalciferol impurity 24 (CAS 300692-92-6)
- Verapamil EP Impurity M (CAS 141991-89-1)
- Ganciclovir impurity 22 (CAS CATO-C4X-102122)
- Ethyl 2-(3-(difluoromethyl)-5,5a,6,6a-tetrahydrocyclopropa[g]indazol-1(4H)-yl)acetate (CAS 1417983-72-2)
- 6-(2,6-Dichlorobenzyl)-2-(3,4-dichlorophenyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine (CAS 477858-94-9)
- 4-((4-Chlorophenyl)thio)-2-phenylpyrimidine-5-carboxylic acid (CAS 477854-49-2)
- N-(5-bromo-2-fluoro-3-nitrophenyl)acetamide (CAS 1313588-91-8)
- 1-(Azetidin-3-yl)-4,4-difluoropiperidine bis(2,2,2-trifluoroacetate) (CAS 2286232-45-7)
- (3aS,4S,7R,7aR)-3a,4,7,7a-Tetrahydro-4,7-methanoisobenzofuran-1(3H)-one (CAS 95340-93-5)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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