Dopamine Impurity 95 CAS CATO-C4X-190895
| CAS No. | CATO-C4X-190895 |
| Molecular Formula | C16H20N2O4 |
| Molecular Weight | 304.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Dopamine Impurity 95 (C16H20N2O4) is characterized by a flavonoid core, 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 process- or degradation-related impurity, Dopamine Impurity 95 (CAS CATO-C4X-190895, C16H20N2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Dopamine Impurity 95 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 | C16H20N2O4 |
| Molecular Weight | 304.34 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
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 108 (CAS CATO-C4X-1908108)
- 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
- Scopolamine impurity 27 (CAS CATO-C4X-195827)
- Propaphos (CAS 7292-16-2)
- Boc-D-Trp-OH (CAS 5241-64-5)
- Epinephrine /Adrenaline Impurity 120 (CAS CATO-C4X-1849120)
- Xanomeline impurity 23 (CAS CATO-C4X-330123)
- Promethazine Impurity 27 (CAS 1209-66-1)
- Mabuterol Impurity 9 (CAS CATO-C4X-14549)
- 1-Bromo-4-(cyclohex-1-en-1-yl)benzene (CAS 1605-17-0)
- 3-Isopropyl-6-methoxy-2-methylquinolin-4-ol (CAS 1285051-95-7)
- 1-Phenyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 142818-01-7)
- Loperamide EP Impurity F (CAS 106900-12-3)
- 2-acetylcyclopentanone (CAS 1670-46-8)
- 2-(3,4-Dimethoxyphenyl)benzothiazole (CAS 6638-45-5)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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