Ursodeoxycholic Acid Impurity 116 CAS 67733-54-4
| CAS No. | 67733-54-4 |
| Molecular Formula | C24H38O4 |
| Molecular Weight | 390.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Ursodeoxycholic Acid Impurity 116 (CAS 67733-54-4, C24H38O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C24H38O4, Ursodeoxycholic Acid Impurity 116 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 390.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), Ursodeoxycholic Acid Impurity 116 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 | C24H38O4 |
| Molecular Weight | 390.56 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1976 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic Acid Impurity 22 (CAS 67008-26-8)
- Ursodeoxycholic Acid EP Impurity F (CAS 4651-67-6)
- Ursodeoxycholic Acid impurity 103 (CAS CATO-C4X-1422103)
- Ursodeoxycholic Acid impurity 104 (CAS CATO-C4X-1422104)
- Ursodeoxycholic Acid impurity 108 (CAS 1144012-08-7)
- Ursodeoxycholic Acid Impurity 112 (CAS CATO-C4X-1422112)
- Ursodeoxycholic Acid Impurity 127 (CAS CATO-C4X-1422127)
- Ursodeoxycholic Acid Impurity 129 (CAS CATO-C4X-1422129)
Recommended Standards
- Ursodeoxycholic acid impurity 25 (CAS 4185-00-6)
- Ursodeoxycholic acid impurity 27 (CAS 77059-13-3)
- Ursodeoxycholic acid impurity 27 (CAS 77060-26-5)
- Aclidinium bromide Impurity 16 (CAS CATO-C4X-132516)
- Ezetimibe Impurity 41 (CAS CATO-C4X-109841)
- Azilsartan Impurity 15 (CAS 1442400-65-8)
- Etomidate Impurity 34 (CAS CATO-C4X-188434)
- 1-(4-Hydroxybutyl)guanidine (CAS 17581-95-2)
- Tert-butyl 7-hydroxy-5-oxa-2-azaspiro[3.5]Nonane-2-carboxylate (CAS 2306260-84-2)
- N-(4-(2,2-difluoroethoxy)benzyl)propan-2-amine (CAS 1179092-12-6)
- 1-Propyl-1H-indazol-4-amine (CAS 1378078-42-2)
- 1-(3-(Trifluoromethyl)cyclobutyl)ethan-1-amine (CAS 2092594-80-2)
- 4,6,7-Trimethoxy-2,3-dihydrofuro[2,3-b]quinoline (CAS 61402-58-2)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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