Deoxycholic acid Impurity 23 CAS 21066-15-9
| CAS No. | 21066-15-9 |
| Molecular Formula | C27H42O5 |
| Molecular Weight | 446.62 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, Deoxycholic acid Impurity 23 (CAS 21066-15-9, C27H42O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C27H42O5, Deoxycholic acid Impurity 23 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 446.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Deoxycholic acid Impurity 23 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 | C27H42O5 |
| Molecular Weight | 446.62 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Deoxycholic Standards
- Deoxycholic acid Impurity 11 (CAS CATO-C4X-335911)
- Deoxycholic acid Impurity 24 (CAS 73505-50-7)
- Deoxycholic acid Impurity 38 (CAS CATO-C4X-335938)
- Deoxycholic acid C16 (CAS 1311972-97-0)
- Deoxycholic acid Impurity 15 (CAS 1093351-39-3)
- Deoxycholic acid Impurity 16 (CAS CATO-C4X-335916)
- Deoxycholic acid Impurity 28 (CAS 2309-12-8)
- Deoxycholic acid Impurity 41 (CAS CATO-C4X-335941)
Recommended Standards
- (R)-methyl 4-((3R,5S,8S,9S,10R,13R,14S,17R)-3-acetoxy-10,13-dimethyl-6-oxohexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate 2616-79-7 5alpha-Cholanic acid-3alpha-ol-6-one 3-acetate methyl ester (CAS 2616-79-7)
- N-[2,3-Dihydro-1,3-dioxo-2-(2-pyridinyl)-1H-benz[de]isoquinolin-6-yl]acetamide (CAS 4931-97-9)
- 3-Ethyl-5-(1-phenyl-4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylidene)-2-thioxothiazolidin-4-one (CAS 14664-55-2)
- Methyl (R)-4-((7R,8S,9S,10R,13R,14S,17R)-7-(methoxymethoxy)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate (CAS 610313-90-1)
- Difelikefalin Impurity 93 (CAS CATO-C4X-304193)
- Ilaprazole Impurity 74 (CAS 1807231-85-1)
- Empagliflozin impurity 327 (CAS CATO-C4X-1065327)
- 5-((2-Fluorobenzyl)thio)-8,9-dimethoxyimidazo[1,2-c]quinazolin-2(3H)-one (CAS 439109-27-0)
- 2-[(3-Iodopropyl)thio]-2-methylpropane (CAS 111349-70-3)
- (r)-2-Amino-2-(3-bromo-4,5-dimethoxyphenyl)ethan-1-ol (CAS 1212808-02-0)
- Alisol A 23-acetate (CAS 19865-75-9)
- 2-((2-Methylquinazolin-4-yl)oxy)-N-(m-tolyl)acetamide (CAS 1030125-70-2)
- 3-Chloro-4-fluorotoluene (CAS 1513-25-3)
- semaglutide (CAS 782487-28-9)
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