Ursodeoxycholic Acid Impurity 1 CAS 4057-84-5
| CAS No. | 4057-84-5 |
| Molecular Formula | C26H42O4 |
| Molecular Weight | 418.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ursodeoxycholic Acid Impurity 1 is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ursodeoxycholic Acid Impurity 1 (CAS 4057-84-5) is a high-purity analytical reference standard with the molecular formula C26H42O4 and a molecular weight of 418.61 g/mol.
The molecular framework of Ursodeoxycholic Acid Impurity 1 (C26H42O4) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C26H42O4 |
| Molecular Weight | 418.61 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 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.) | 1958 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic Acid Impurity 117 (CAS 69700-82-9)
- Ursodeoxycholic Acid Impurity 71 (CAS 69519-35-3)
- Ursodeoxycholic Acid Impurity 118 (CAS 83896-19-9)
- Ursodeoxycholic Acid-d5 Methyl Ester (CAS 93701-19-0)
- Ursodeoxycholic Acid Impurity 113 (CAS CATO-C4X-1422113)
- Ursodeoxycholic Acid Impurity 132 (CAS CATO-C4X-1422132)
- Ursodeoxycholic Acid EP Impurity B (CAS 81-25-4)
- Ursodeoxycholic Acid EP Impurity D (CAS 2955-27-3)
Recommended Standards
- N-(3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propyl)oleamide (CAS 94042-66-7)
- Obeticholic Acid Impurity 12 (CAS 1885104-64-2)
- Maesaquinone (CAS 19833-20-6)
- Obeticholic Acid Impurity 33 (CAS 1908444-27-8)
- 4-(Aminomethyl)-N-methyl-1,3-thiazol-2-amine dihydrochloride (CAS 1269152-19-3)
- 4-Isopropyl-N-(4-methoxyphenyl)benzenesulfonamide (CAS 314034-51-0)
- 2-(4-Methylpyridin-2-yl)pyrrolidine-1-carbaldehyde (CAS 1352500-10-7)
- N-cyclohexyl-4-(trifluoromethyl)cyclohexan-1-amine (CAS 859523-20-9)
- 1-Phenyl-1H-indole-2,3-dione 3-[N-(4-methoxyphenyl)hydrazone] (CAS 303984-70-5)
- rac-Clopidogrel-MP Endo Derivative-13C,d3 (CAS 1346597-76-9)
- 1-Ethyl-3-(4-nitrophenyl)urea (CAS 70826-96-9)
- (4-(2-Propoxyethoxy)phenyl)boronic acid (CAS 279262-27-0)
- (R)-2-(2-bromo-4-fluorophenyl)pyrrolidine (CAS 1228548-34-2)
- Retatrutide (CAS 2381089-83-2)
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