Crisaborole Impurity 29 CAS CATO-C4X-202129
| CAS No. | CATO-C4X-202129 |
| Molecular Formula | C31H32BNO8 |
| Molecular Weight | 557.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Crisaborole Impurity 29 (CAS CATO-C4X-202129) is a certified pharmaceutical impurity reference standard with the molecular formula C31H32BNO8 and a molecular weight of 557.40 g/mol.
Based on its molecular formula C31H32BNO8, Crisaborole Impurity 29 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 557.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 certified reference material (CRM), Crisaborole 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 | C31H32BNO8 |
| Molecular Weight | 557.40 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Crisaborole Standards
- Crisaborole lmpurity 82 (CAS CATO-C4X-202182)
- Crisaborole Impurity 145 (CAS CATO-C4X-2021145)
- Crisaborole Impurity 147 (CAS CATO-C4X-2021147)
- Crisaborole impurity 130 (CAS CATO-C4X-2021130)
- Crisaborole lmpurity 88 (CAS CATO-C4X-202188)
- Crisaborole Impurity 53 (CAS 2850341-51-2)
- Crisaborole Impurity 49 (CAS CATO-C4X-2021149)
- Crisaborole Impurity 71 (CAS CATO-C4X-202171)
Recommended Standards
- 2-(2H-1,3-Benzodioxol-5-yl)-3-{[2-(2H-1,3-benzodioxol-5-yl)-6-chloroimidazo[1,2-a]pyridin-3-yl]methyl}-6-chloroimidazo[1,2-a]pyridine (CAS 866145-42-8)
- SGI-110, 96% (CAS 929901-49-5)
- Methyl 6-[(2E)-2-{[(2,3-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate (CAS 341966-44-7)
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- Peptide Impurity 15 (CAS 1227750-69-7)
- Vardenafil Impurity 14 (CAS CATO-C4X-101714)
- Biotin Impurity 1((+)-Biotin (+)-Sulfoxide) (CAS 10406-89-0)
- 2-((4-(2-Fluorophenyl)thiazol-2-yl)methyl)thiazol-4-ol (CAS 860651-46-3)
- 6-Chloro-N-(3-(4-methylpiperazin-1-yl)propyl)pyridazin-3-amine (CAS 1351393-89-9)
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- Methyl 3-amino-3-(4-bromo-3-fluorophenyl)propanoate (CAS 1541944-12-0)
- (S)-1-(4,4-Dimethylcyclohexyl)ethan-1-amine (CAS 1568249-79-5)
- 4-{[11-(but-3-enoyloxy)undecyl]oxy}benzoic acid (CAS 141522-67-0)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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