Ursodeoxycholic Acid Impurity 131 CAS CATO-C4X-1422131
| CAS No. | CATO-C4X-1422131 |
| Molecular Formula | C31H46N2O6S |
| Molecular Weight | 574.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ursodeoxycholic Acid Impurity 131 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.
As a process- or degradation-related impurity, Ursodeoxycholic Acid Impurity 131 (CAS CATO-C4X-1422131, C31H46N2O6S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Ursodeoxycholic Acid Impurity 131 (C31H46N2O6S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C31H46N2O6S |
| Molecular Weight | 574.77 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic acid acyl-β-D-glucuronide (CAS 208038-28-2)
- Ursodeoxycholic Acid Impurity 126 (CAS 15324-65-9)
- 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
- N-((1R,3S,4S)-3-((4-(3-Benzyl-1-ethyl-1H-pyrazol-5-yl)piperidin-1-yl)methyl)-4-(3-fluorophenyl)cyclopentyl)-N-methyl-D-valine (CAS 313994-79-5)
- Carbenoxolone-d4 (CAS 5697-56-3 (Unlabeled))
- 1-(4-Methoxyphenyl)-3-({4-[(4-{[3-(4-methoxyphenyl)-3-oxopropyl]sulfanyl}phenyl)sulfanyl]phenyl}sulfanyl)propan-1-one (CAS 882749-71-5)
- Phorbol 13-myristate (CAS 115905-51-6)
- Lumefantrine Impurity 4 (CAS 1795128-25-4)
- Upadacitinib Impurity 145 (CAS CATO-C4X-2405145)
- Morinidazole Impurity 16 (CAS CATO-C4X-219616)
- 2-(4-Cyano-2-methoxyphenoxy)-N-cyclopropylacetamide (CAS 850301-77-8)
- AR-42 (CAS 935881-37-1)
- 2-(Ethylamino)-N-(4-fluorobenzyl)benzamide (CAS 1408002-60-7)
- 1-(3-methylphenyl)cyclopentan-1-amine (CAS 75095-82-8)
- 1-(2-Fluoro-4-propoxyphenyl)ethan-1-one (CAS 119774-74-2)
- 3-Butylisoxazole-5-carbaldehyde (CAS 556782-69-5)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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