Dalilesen impurity 46 CAS CATO-C4X-301046
| CAS No. | CATO-C4X-301046 |
| Molecular Formula | C10H8BrN3O3 |
| Molecular Weight | 298.09 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.
Dalilesen impurity 46 (CAS CATO-C4X-301046) is a certified pharmaceutical impurity reference standard with the molecular formula C10H8BrN3O3 and a molecular weight of 298.09 g/mol.
The molecular framework of Dalilesen impurity 46 (C10H8BrN3O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H8BrN3O3 |
| Molecular Weight | 298.09 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Dalilesen Standards
- Dalilesen Impurity 43 (CAS CATO-C4X-301043)
- Dalilesen Impurity 60 (CAS CATO-C4X-301060)
- Dalilesen impurity 48 (CAS CATO-C4X-301048)
- Dalilesen Impurity 1 (CAS 54413-93-3)
- Dalilesen impurity 26 (CAS CATO-C4X-301026)
- Dalilesen Impurity 21 (CAS CATO-C4X-301021)
- Dalilesen Impurity 30 (CAS 2248726-39-6)
- Dalilesen impurity 50 (CAS CATO-C4X-301050)
Recommended Standards
- Methyl 5-bromo-8H-[1,3]dioxolo[4,5-g]indole-7-carboxylate (CAS 496875-47-9)
- 4-[(4-Amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy]benzonitrile (CAS 1023540-16-0)
- Methyl 2-(5-bromo-2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetate (CAS 688038-79-1)
- Ethyl 4-((1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)oxy)benzoate (CAS 1187187-14-9)
- Brivaracetam Impurity 93 (CAS CATO-C4X-200793)
- Atrasentan Impurity 172 (CAS 1059051-96-5)
- Tofacitinib Impurity 159 (CAS 1640971-51-2)
- 2-(Aminomethyl)adamantan-2-ol (CAS 28529-71-7)
- 2-(2-Methylpiperidin-1-yl)pyrimidin-5-amine (CAS 1249563-11-8)
- EpinastinHBr (CAS 80012-42-6)
- Crisdesalazine (CAS 927685-43-6)
- 1-(3,4-Dihydroxy-4,5-dihydrofuran-2-yl)ethanone (CAS 19872-46-9)
- (R)-2-chloro-8-cyclopentyl-7-ethyl-7,8-dihydropteridin-6(5H)-one (CAS 755039-54-4)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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