Ursodeoxycholic Impurity 14 CAS 345909-26-4
| CAS No. | 345909-26-4 |
| Molecular Formula | C26H44NO7S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ursodeoxycholic Impurity 14 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ursodeoxycholic Impurity 14 (CAS 345909-26-4) is a certified pharmaceutical impurity reference standard with the molecular formula C26H44NO7SNaxH2O and a molecular weight of 555.70 g/mol.
The molecular framework of Ursodeoxycholic Impurity 14 (C26H44NO7SNaxH2O) 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 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H44NO7S Na xH2O |
| Molecular Weight | 555.70 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur 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
- Selumetinib Impurity 17 (CAS CATO-C4X-305317)
- Roxatidine Impurity 47 (CAS 4530-46-5)
- Rosuvastatin Impurity 26 (CAS 488798-38-5)
- 1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine-4-carbonitrile (CAS 1092580-01-2)
- ((2S,5R)-5-(5-Methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl tetrahydrogen triphosphate, sodium salt (CAS 128524-26-5)
- 5-(2,5-Dimethyl-1h-pyrrol-1-yl)-2-methylphenylamine (CAS 943117-83-7)
- 2-Chloro-4-(3-methyl-1h-1,2,4-triazol-1-yl)benzaldehyde (CAS 1819358-30-9)
- (E)-N-[(2-fluorophenyl)methylidene]hydroxylamine (CAS 24652-66-2)
- Trimethyl 1,2,4-benzenetricarboxylate (CAS 2459-10-1)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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