Ursodeoxycholic Acid Impurity 21 CAS 23848-46-6
| CAS No. | 23848-46-6 |
| Molecular Formula | C24H42O3 |
| Molecular Weight | 378.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, Ursodeoxycholic Acid Impurity 21 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 378.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Ursodeoxycholic Acid Impurity 21 (CAS 23848-46-6), molecular formula C24H42O3 and molecular weight 378.59 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ursodeoxycholic Acid Impurity 21 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 | C24H42O3 |
| Molecular Weight | 378.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic Acid EP Impurity I (CAS 130593-75-8)
- Ursodeoxycholic Acid Impurity N3 (CAS 28083-34-3)
- Ursodeoxycholic Acid impurity 100 (CAS CATO-C4X-1422100)
- Ursodeoxycholic Acid Impurity 123 (CAS 10601-78-2)
- Ursodeoxycholic Acid EP Impurity C (CAS 434-13-9)
- Ursodeoxycholic Acid Impurity 13 (CAS 5255-17-4)
- Ursodeoxycholic Acid impurity 106 (CAS CATO-C4X-1422106)
- Ursodeoxycholic Acid Impurity 68 (CAS 62797-60-8)
Recommended Standards
- tert-Butyl 5-chloro-3-iodo-1H-indazole-1-carboxylate (CAS 2839736-48-8)
- Furan Fatty Acid F8 (CAS 57818-43-6)
- ethyl 11-(3,4-dimethyl-5-pentylfuran-2-yl)undecanoate (CAS 1133815-50-5)
- 1H-indazole-1-carboxylic acid, 4-chloro-3-iodo-, 1,1-dimethylethyl ester (CAS 518990-30-2)
- (4-Bromophenyl)(2-fluoro-4-hydroxyphenyl)methanone (CAS 161581-99-3)
- (2S,4R)-1-(tert-butoxycarbonyl)-4-(difluoromethoxy)pyrrolidine-2-carboxylic acid (CAS 1807939-39-4)
- 2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7-ol 2-methyloxazolo[5,4-d]pyrimidin-7-ol 27433-55-2 NSC133683 (CAS 27433-55-2)
- rac N,O-Didesmethyl Venlafaxine -D-Glucuronide Hydrochloride (CAS 1021933-99-2)
- Methyl 2-oxo-2-(4-(2-thioxoethyl)phenyl)acetate (CAS 1443314-09-7)
- 4-Ethyl-2-(piperidin-4-yl)hexan-1-amine (CAS 1306606-50-7)
- (1,5-Cyclooctadiene)(pyridine)(tricyclohexylphosphine)iridium(I) (CAS 64536-77-2)
- Levofloxacin impurity 75 (CAS CATO-C4X-137175)
- ethyl 5-(bromomethyl)-2-methyl-pyrazole-3-carboxylate (CAS 199480-29-0)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com