Ursodeoxycholic Acid Impurity 126 CAS 15324-65-9
| CAS No. | 15324-65-9 |
| Molecular Formula | C26H45NO8S2 |
| Molecular Weight | 563.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ursodeoxycholic Acid Impurity 126 (CAS 15324-65-9), a pharmacopoeial impurity reference standard (molecular formula C26H45NO8S2, MW 563.77 g/mol) used for the identification and quantification of trace impurities in APIs.
Ursodeoxycholic Acid Impurity 126 (C26H45NO8S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Ursodeoxycholic Acid Impurity 126 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 | C26H45NO8S2 |
| Molecular Weight | 563.77 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic acid acyl-β-D-glucuronide (CAS 208038-28-2)
- Ursodeoxycholic Acid Impurity 131 (CAS CATO-C4X-1422131)
- Ursodeoxycholic Acid impurity 29 (CAS CATO-C4X-142279)
- Ursodeoxycholic Acid impurity 93 (CAS CATO-C4X-142293)
- Ursodeoxycholic Acid impurity 77 (CAS CATO-C4X-142277)
- Ursodeoxycholic Acid impurity 92 (CAS CATO-C4X-142292)
- Ursodeoxycholic Acid impurity 80 (CAS CATO-C4X-142280)
- Ursodeoxycholic Acid impurity 89 (CAS 13222-48-5)
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com