Atogepant Impurity 43 CAS CATO-C4X-328543
| CAS No. | CATO-C4X-328543 |
| Molecular Formula | C29H23F6N5O3 |
| Molecular Weight | 603.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Atogepant Impurity 43 (CAS CATO-C4X-328543) is a certified pharmaceutical impurity reference standard with the molecular formula C29H23F6N5O3 and a molecular weight of 603.52 g/mol.
Atogepant Impurity 43 (C29H23F6N5O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C29H23F6N5O3 |
| Molecular Weight | 603.52 g/mol |
| Purity | ≥98% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
Related Atogepant Standards
- Atogepant Impurity 39 (CAS CATO-C4X-328539)
- Atogepant Impurity 40 (CAS CATO-C4X-328540)
- Atogepant Impurity 41 (CAS CATO-C4X-328541)
- Atogepant Impurity 42 (CAS CATO-C4X-328542)
- Atogepant Impurity 44 (CAS CATO-C4X-328544)
- Atogepant Impurity 45 (CAS CATO-C4X-328545)
- Atogepant Impurity 46 (CAS CATO-C4X-328546)
- Atogepant Impurity 75 (CAS CATO-C4X-328575)
Recommended Standards
- Methyl 5-((3-bromo-4-methylpyridin-2-yl)(tert-butoxycarbonyl)amino)-3'-(ethylsulfonyl)-4-methylbiphenyl-3-carboxylate (CAS 1415562-73-0)
- Atogepant (CAS 1374248-81-3)
- Fmoc-D-Phe(4-Cl)-D-Phe(4-Cl)-OH (CAS CATO-CPTD788368)
- Cintirorgon (LYC-55716) (CAS 2055536-64-4)
- Pomalidomide Impurity 19 (CAS 1001852-10-3)
- Cefcapene Impurity 61 (CAS CATO-C4X-182461)
- Olaparib Impurity 32 (CAS CATO-C4X-113532)
- 5-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)pentan-1-ol (CAS 1250639-21-4)
- 5-Chloro-2-((2-chloro-4-fluorobenzyl)oxy)benzaldehyde (CAS 667436-66-0)
- (4-Iodophenyl)diphenylphosphane (CAS 440111-10-4)
- 2-((2-Ethoxybenzyl)amino)propan-1-ol (CAS 1153894-82-6)
- 3-amino-6-[(dibenzylamino)methyl]-4H-1,2,4-triazin-5-one (CAS 93206-03-2)
- (E)-N-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2-(2-methoxyphenyl)ethene-1-sulfonamide (CAS 478246-30-9)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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