Ursodeoxycholic Acid Impurity 59 CAS 338950-81-5
| CAS No. | 338950-81-5 |
| Molecular Formula | C26H42NO6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 505.63 g/mol gives Ursodeoxycholic Acid Impurity 59 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ursodeoxycholic Acid Impurity 59 (CAS 338950-81-5), a pharmacopoeial impurity reference standard (molecular formula C26H42NO6NaH2O, MW 505.63 g/mol) used for the identification and quantification of trace impurities in APIs.
Ursodeoxycholic Acid Impurity 59 (C26H42NO6NaH2O) contains a nitrogen-containing heterocyclic scaffold, an amide 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Ursodeoxycholic Acid Impurity 59 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 | C26H42NO6 Na H2O |
| Molecular Weight | 505.63 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic Acid Impurity 119 (CAS 1024498-33-6)
- Ursodeoxycholic Acid EP Impurity G (CAS 10538-55-3)
- Ursodeoxycholic Acid Impurity 123 (CAS 10601-78-2)
- Ursodeoxycholic acid impurity 61 (CAS 110107-03-4)
- Ursodeoxycholic Acid impurity 108 (CAS 1144012-08-7)
- 24-Nor Ursodeoxycholic Acid Methyl Ester (CAS 118316-16-8)
- Ursodeoxycholic Impurity 18 (CAS 1192657-83-2)
- Ursodeoxycholic Acid EP Impurity I (CAS 130593-75-8)
Recommended Standards
- Vonoprazan Fumarate Impurity 29 (CAS CATO-C4X-102029)
- Tenofovir alafenamide impurity 83 (CAS 2126010-02-2(free base))
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- tert-Butyl 3-iodo-5-methoxy-6-nitro-1H-indole-1-carboxylate (CAS 1823509-06-3)
- Emedastine EP Impurity A (CAS 101953-61-1)
- (R)-1-(3-bromo-4-fluorophenyl)butan-1-amine (CAS 1213510-25-8)
- 1-(4-Bromophenyl)-3-{[(4-chlorophenyl)methyl]sulfanyl}pyrrolidine-2,5-dione (CAS 298218-18-5)
- (3-(6-Bromopyridin-2-yl)phenyl)boronic acid (CAS 2225172-27-8)
- (3AS,4R,6S,6aS)-4-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-6-methoxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole (CAS 26255-73-2)
- Hexapeptide-9 (CAS 885024-94-2)
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