Prednisolone Impurity 41 CAS CATO-C4X-173741
| CAS No. | CATO-C4X-173741 |
| Molecular Formula | C24H32O5 |
| Molecular Weight | 400.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Prednisolone Impurity 41 (C24H32O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a process- or degradation-related impurity, Prednisolone Impurity 41 (CAS CATO-C4X-173741, C24H32O5) 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), Prednisolone Impurity 41 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 | C24H32O5 |
| Molecular Weight | 400.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Prednisolone Standards
- Prednisolone impurity 60 (CAS CATO-C4X-173760)
- Prednisolone Impurity 28 (CAS 95440-71-4)
- Prednisolone Impurity 42 (CAS 3597-59-9)
- Prednisolone Acetate (CAS 52-21-1)
- Prednisolone 17-Acetate (CAS 52628-64-5)
- Prednisolone Impurity 32 (CAS CATO-C4X-173732)
- Prednisolone Impurity 34 (CAS CATO-C4X-173734)
- Prednisolone impurity 67 (CAS 20380-17-0)
Recommended Standards
- Eplerenone EP Impurity G (CAS 41020-65-9)
- (3S)-3-[(2-methylpropan-2-yl)oxycarbonylamino]-7-(phenylmethoxycarbonylamino)heptanoic acid (3S)-3-[[(2-methylpropan-2-yl)oxy-oxomethyl]amino]-7-(phenylmethoxycarbonylamino)heptanoic acid (3S)-7-(benzyloxycarbonylamino)-3-(tert-butoxycarbonylamino)enanthic acid (3S)-7-(benzyloxycarbonylamino)-3-(tert-butoxycarbonylamino)heptanoic acid 346694-77-7 Boc-L-beta-homolysine(Cbz) (CAS 346694-77-7)
- Peramivir Impurity 125 (CAS CATO-C4X-1833125)
- tert-Butyl 6-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1H-indole-1-carboxylate (CAS 2007921-10-8)
- Vincristine Impurity 21 (CAS CATO-C4X-208921)
- Lenalidomide Impurity 42 (CAS CATO-C4X-190342)
- Hydroxychloroquine impurity 86 (CAS CATO-C4X-183586)
- 3-[(2-Hydroxyphenyl)amino]-5,5-dimethylcyclohex-2-en-1-one (CAS 51924-59-5)
- 3-Methoxycarbonyl-1-(methyl-d3)pyridinium Iodide (CAS 131448-16-3)
- 3-(Hexyloxy)-N-(3-methylbenzyl)aniline (CAS 1040682-36-7)
- 2-(4-Bromophenyl)-3,3-dichloroquinolin-4(3H)-one (CAS 146774-88-1)
- 4-Hexylbicyclo[2.2.2]octan-1-ol (CAS 76921-52-3)
- 1-(2-(6-(2,5-Dimethyl-1H-pyrrol-1-yl)pyridin-3-yl)pyrrolidin-1-yl)ethanone (CAS 1352528-02-9)
- 69558-55-0 O3Y80ZF13F Thymopentin Thymopentin [USAN:INN:BAN] L-Tyrosine, N-(N-(N-(N2-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- L-Tyrosine, N-(N-(N-(N(sup 2)-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- Thymopentine [French] Thymopentinum [Latin] Timopentina [Spanish] Thymopoietin 32-36 TP-5 Thymopoietin pentapeptide ORF-15244 Thymopentine Thymopentinum Timopentina ORF 15244 UNII-O3Y80ZF13F (CAS 69558-55-0)
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