Dopamine Impurity 43 CAS 52846-75-0
| CAS No. | 52846-75-0 |
| Molecular Formula | C10H15NO |
| Molecular Weight | 165.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Dopamine 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.
Dopamine Impurity 43 (CAS 52846-75-0) is a certified pharmaceutical impurity reference standard with the molecular formula C10H15NO and a molecular weight of 165.23 g/mol.
Structurally, Dopamine Impurity 43 (C10H15NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 165.23 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.
Physical & Chemical Properties
| Molecular Formula | C10H15NO |
| Molecular Weight | 165.23 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 28 (CAS 1484-85-1)
- Dopamine Impurity 79 (CAS 2097441-90-0)
- Dopamine Impurity 17 (CAS 1129-53-9)
- Dopamine Impurity 81 (CAS 68929-11-3)
- Dopamine Impurity 82 (CAS 5663-54-7)
- Dopamine Impurity 83 (CAS CATO-C4X-190883)
- Dopamine Impurity 84 (CAS CATO-C4X-190884)
- Dopamine Impurity 99 (CAS CATO-C4X-190899)
Recommended Standards
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- Rebamipide impurity 22 (CAS 212502-72-2)
- Clobetasone Butyrate EP Impurity F (CAS 25120-98-3)
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- (2-Amino-5-chloropyridin-4-yl)methanol (CAS 1598357-54-0)
- (2R,3R,4S,5R)-2-(2,6-Diamino-9H-purin-9-yl)-5-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol (CAS 80791-88-4)
- 2-(2-Methoxy-[1,1'-biphenyl]-3-yl)-1-phenylethanol (CAS 1385020-84-7)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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