Dopamine Impurity 98 CAS CATO-C4X-190898
| CAS No. | CATO-C4X-190898 |
| Molecular Formula | C18H18N2O4 |
| Molecular Weight | 326.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dopamine Impurity 98 (C18H18N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 326.35 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Dopamine Impurity 98 (CAS CATO-C4X-190898) is a certified pharmaceutical impurity reference standard with the molecular formula C18H18N2O4 and a molecular weight of 326.35 g/mol.
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), Dopamine Impurity 98 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 | C18H18N2O4 |
| Molecular Weight | 326.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ＞95% |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dopamine Standards
- Dopamine Impurity 115 (CAS CATO-C4X-1908115)
- Dopamine Impurity 116 (CAS CATO-C4X-1908116)
- Dopamine Impurity 117 (CAS CATO-C4X-1908117)
- Dopamine Impurity 69 (CAS CATO-C4X-190869)
- Dopamine Impurity 96 (CAS CATO-C4X-190896)
- Dopamine Impurity 58 (CAS 140165-60-2)
- Dopamine Impurity 119 (CAS 24997-85-1)
- Dopamine Impurity 106 (CAS CATO-C4X-1908106)
Recommended Standards
- Imidafenacin Impurity 4 (CAS CATO-C4X-18084)
- Ruxolitinib Impurity 1 (CAS 2606144-44-7)
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- Amlexanox Impurity 5 (CAS CATO-C4X-21765)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
- Latamoxef Impurity 15 (CAS CATO-C4X-179815)
- Posaconazole Impurity 258 (CAS CATO-C4X-1208258)
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- Immunstimulating Peptide, human (CAS 94773-24-7)
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