Dutasteride Impurity 29 CAS CATO-C4X-110329
| CAS No. | CATO-C4X-110329 |
| Molecular Formula | C20H31NO2 |
| Molecular Weight | 317.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Dutasteride Impurity 29 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 317.47 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.
As a process- or degradation-related impurity, Dutasteride Impurity 29 (CAS CATO-C4X-110329, C20H31NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 certified reference material (CRM), Dutasteride Impurity 29 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 | C20H31NO2 |
| Molecular Weight | 317.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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 |
| Nitrogen Atoms | 1 |
Related Dutasteride Standards
- Dutasteride Impurity 30 (CAS CATO-C4X-110330)
- Dutasteride EP Impurity A (CAS 104239-97-6)
- Dutasteride Impurity 31 (CAS CATO-C4X-110331)
- Dutasteride impurity A(C4X-16451) (CAS 103335-55-3)
- Dutasteride Impurity 16 (CAS 1430804-94-6)
- Dutasteride Impurity 28 (CAS CATO-C4X-110328)
- Dutasteride Impurity 24 (CAS CATO-C4X-110324)
- Dutasteride EP Impurity B (CAS 2512195-98-9)
Recommended Standards
- 338421-65-1 4H-430S N-{1,3-bis[(4-methylphenyl)sulfanyl]propan-2-ylidene}hydroxylamine (CAS 338421-65-1)
- 3-(Phenylsulfanyl)-N-[2-(phenylsulfanyl)ethyl]propanamide (CAS 337923-39-4)
- Cholecalciferol Impurity 21 (CAS CATO-C4X-158621)
- 1-(Oct-1-yn-1-yl)-2-phenyl-1,2,3,4-tetrahydroisoquinoline (CAS 823814-02-4)
- Riociguat impurity 28 (CAS CATO-C4X-174928)
- Lornoxicam Impurity 78 (CAS 16817-89-3)
- Ramelteon Impurity 5 (CAS 880152-62-5)
- 1171685-44-1 4-[5-(Propionylamino)pyridin-2-yl]benzoic acid MFCD14281940 (CAS 1171685-44-1)
- N-(3-chloro-4-fluorophenyl)tetrahydro-2H-thiopyran-4-amine (CAS 1153292-08-0)
- Rutacridone epoxide (CAS 77996-03-3)
- 4-(Chloromethyl)-1-(2,5-dimethylphenyl)-1H-1,2,3-triazole (CAS 1251302-83-6)
- 2-[Benzyl(methyl)carbamoyl]-2,2-dimethylacetic acid (CAS 1502184-75-9)
- 4-[1-(4-Nitrophenyl)-4-piperidyl]morpholine (CAS 867291-41-6)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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