Dopamine Impurity 108 CAS CATO-C4X-1908108
| CAS No. | CATO-C4X-1908108 |
| Molecular Formula | C16H19NO5 |
| Molecular Weight | 305.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Dopamine Impurity 108 (CAS CATO-C4X-1908108) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19NO5 and a molecular weight of 305.33 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Dopamine Impurity 108 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C16H19NO5 |
| Molecular Weight | 305.33 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 114 (CAS CATO-C4X-1908114)
- Dopamine Impurity 118 (CAS CATO-C4X-1908118)
- Dopamine Impurity 62 (CAS CATO-C4X-190862)
- Dopamine Impurity 95 (CAS CATO-C4X-190895)
- Dopamine Impurity 109 (CAS CATO-C4X-1908109)
- Dopamine Impurity 97 (CAS CATO-C4X-190897)
- Dopamine impurity 110 (CAS CATO-C4X-1908110)
- Dopamine Impurity 48 (CAS CATO-C4X-190848)
Recommended Standards
- Lenalidomide Impurity 50 (CAS CATO-C4X-190350)
- Lornoxicam Impurity 79 (CAS 1629463-16-6)
- Lenalidomide Impurity 49 (CAS CATO-C4X-190349)
- Evocalcet Impurity 21 (CAS CATO-C4X-248521)
- Phloroglucinol Impurity 35 (CAS 4018-65-9)
- Prilocaine Impurity 23 (CAS 95827-14-8)
- Daptomycin Impurity 59 (CAS CATO-C4X-137859)
- N-(5-(piperazin-1-ylmethyl)thiazol-2-yl)acetamide (CAS 1365942-13-7)
- 4-[(2-Chloropyrimidin-4-yl)amino]benzoic acid (CAS 1208083-39-9)
- Minozac DiHCl (CAS 924909-75-1)
- Methylbenactyzium Bromide (CAS 3166-62-9)
- (4R,5R)-1,3-Bis(2-isopropylphenyl)-4,5-diphenyl-4,5-dihydro-1H-imidazol-3-ium tetrafluoroborate (CAS 372517-14-1)
- (2R,3S)-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)tetrahydrofuran-3-amine dihydrochloride (CAS 1808654-34-3)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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