Dopamine Impurity 103 CAS CATO-C4X-1908103
| CAS No. | CATO-C4X-1908103 |
| Molecular Formula | C16H13NO3 |
| Molecular Weight | 267.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dopamine Impurity 103 (C16H13NO3) contains a nitrogen-containing heterocyclic scaffold, 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 267.28 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Dopamine Impurity 103 (CAS CATO-C4X-1908103) is a certified pharmaceutical impurity reference standard with the molecular formula C16H13NO3 and a molecular weight of 267.28 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 103 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 | C16H13NO3 |
| Molecular Weight | 267.28 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 23 (CAS 1158-27-6)
- Dopamine Impurity 104 (CAS CATO-C4X-1908104)
- Dopamine Impurity 14 (CAS 217657-34-6)
- Dopamine Impurity 48 (CAS 500337-08-6)
- Dopamine Impurity 73 (CAS CATO-C4X-190873)
- Dopamine Impurity 102 (CAS CATO-C4X-1908102)
- Dopamine Impurity 112 (CAS CATO-C4X-1908112)
- Dopamine Impurity 57 (CAS 16240-59-8)
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