Sapropterin Impurity 3 CAS CATO-C4X-27663
| CAS No. | CATO-C4X-27663 |
| Molecular Formula | C9H14N4O4 |
| Molecular Weight | 242.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Sapropterin Impurity 3 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Sapropterin Impurity 3 (CAS CATO-C4X-27663) is a certified pharmaceutical impurity reference standard with the molecular formula C9H14N4O4 and a molecular weight of 242.23 g/mol.
Structurally, Sapropterin Impurity 3 (C9H14N4O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 242.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Sapropterin Impurity 3 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 | C9H14N4O4 |
| Molecular Weight | 242.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Sapropterin Standards
- Sapropterin D3 (CAS CATO-C4X-31026)
- Sapropterin (CAS 62989-33-7)
- Sapropterin Impurity 4 (CAS CATO-C4X-27664)
- Sapropterin impurity 3 (CAS CATO-C4X-31023)
- Sapropterin Impurity 1 (CAS 1131-35-7)
- Sapropterin Impurity 2 (CAS CATO-C4X-27662)
- Sapropterin Impurity 5 (CAS 17838-80-1)
- Sapropterin Impurity 7 (CAS 6228-40-6)
Recommended Standards
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- Nintedanib Impurity 10 (CAS 2037385-84-3)
- Diethylene Glycol Monopentyl Ether (CAS 18912-81-7)
- Letermovir Impurity 13 (CAS CATO-C4X-291513)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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