Sepiapterin impurity 16 CAS CATO-C4X-276616
| CAS No. | CATO-C4X-276616 |
| Molecular Formula | C9H13N7O5 |
| Molecular Weight | 299.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H13N7O5, Sepiapterin impurity 16 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Sepiapterin impurity 16 (CAS CATO-C4X-276616, C9H13N7O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
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 | C9H13N7O5 |
| Molecular Weight | 299.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Sepiapterin Standards
- Sepiapterin Impurity 26 (CAS 13039-69-5)
- Sepiapterin Impurity 7 (CAS CATO-C4X-31027)
- Sepiapterin Impurity 12 (CAS CATO-C4X-276612)
- Sepiapterin Impurity 13 (CAS CATO-C4X-276613)
- Sepiapterin impurity 22 (CAS 1355024-07-5)
- Sepiapterin Impurity 24-D3 (CAS 2747956-15-4)
- Sepiapterin Impurity 11 (CAS 1177884-36-4)
- L-Sepiapterin (CAS 17094-01-8)
Recommended Standards
- 6,7-Methylenedioxy-4-methyl-3-maleimidocoumarin [for HPLC Labeling] (CAS 97744-90-6)
- 8-Hydroxyguanosine (CAS 3868-31-3)
- 5-azido-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 281208-18-2)
- Ethyl 1-ethyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate (CAS 100501-62-0)
- Albendazole Impurity N78 (CAS 139751-05-6)
- Orforglipron impurity 27 (CAS 465529-57-1)
- Spironolactone Impurity 16 (CAS CATO-C4X-134516)
- Decyl docosanoate (CAS 42218-29-1)
- 1,2-Bis(bromomethyl)cyclopropane (CAS 100516-81-2)
- Lithium Trifluoro(trifluoromethyl)borate - Dimethyl Carbonate Complex (CAS 1443685-69-5)
- (S)-2-(tert-Butoxycarbonylamino)-4-(3-methyl-3H-diazirine-3-yl)butanoic acid (CAS 1002754-75-7)
- (2E)-1-(3-Chlorophenyl)-3-(4-methylphenyl)prop-2-en-1-one (CAS 1370425-83-4)
- 2,2-Dimethyl-3-(pyridin-4-yl)propanoic acid hydrochloride (CAS 2197052-65-4)
- Des-Ala35-Tirzepatide (CAS CATO-CPTD788939)
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