Alanyl Glutamine Impurity 43 CAS CATO-C4X-197443
| CAS No. | CATO-C4X-197443 |
| Molecular Formula | C7H10N2O4 |
| Molecular Weight | 186.17 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.
Alanyl Glutamine Impurity 43 (CAS CATO-C4X-197443) is a certified pharmaceutical impurity reference standard with the molecular formula C7H10N2O4 and a molecular weight of 186.17 g/mol.
The molecular framework of Alanyl Glutamine Impurity 43 (C7H10N2O4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Alanyl Glutamine Impurity 43 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 | C7H10N2O4 |
| Molecular Weight | 186.17 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Alanyl Standards
- D-Alanyl-L-proline (CAS 61430-12-4)
- Alanyl Glutamine Impurity 48 (CAS 2703745-19-9)
- Alanyl Glutamine Impurity 35 (CAS CATO-C4X-197435)
- Alanyl Glutamine Impurity 38 (CAS CATO-C4X-197438)
- Alanyl Glutamine Impurity 39 (CAS CATO-C4X-197439)
- Alanyl Glutamine Impurity 42 (CAS CATO-C4X-197442)
- β-Alanyl-DL-Leucine (CAS 102029-56-1)
- DL-Alanyl-DL-leucine (CAS 1999-42-4)
Recommended Standards
- Cinacalcet impurity 86 (CAS CATO-C4X-105986)
- Daprodustat Impurity 18 (CAS 117043-46-6)
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- AMPA (CAS 74341-63-2)
- Selexipag Impurity 59 (CAS CATO-C4X-196159)
- Flurbiprofen Impurity 28 (CAS CATO-C4X-144428)
- Apixaban Impurity 68 (CAS CATO-C4X-108868)
- 2-(4-(Methoxymethyl)phenyl)propan-2-ol (CAS 112766-34-4)
- 5-Bromo-6-nitropyridin-3-amine (CAS 1805444-34-1)
- 1-(2-Aminoethyl)imidazole (CAS 5739-10-6)
- 2-(Cbz-amino)-2-hydroxyacetic Acid (CAS 56538-57-9)
- Artemisinin Impurity 11 (CAS 81496-81-3)
- Chlorhexidine Digluconate Solution EP Impurity L (CAS CATO-C4X-225637)
- [α-Glu](Sidechain trans-position)-Liraglutide (CAS CATO-C4X-199240)
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