Dopamine Impurity 5 CAS 2815-67-0
| CAS No. | 2815-67-0 |
| Molecular Formula | C10H11NO4 |
| Molecular Weight | 209.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Dopamine Impurity 5 (CAS 2815-67-0) is a certified pharmaceutical impurity reference standard with the molecular formula C10H11NO4 and a molecular weight of 209.20 g/mol.
Dopamine Impurity 5 (C10H11NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
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.
Physical & Chemical Properties
| Molecular Formula | C10H11NO4 |
| Molecular Weight | 209.20 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 6 (CAS 37630-20-9)
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- Dopamine Impurity 70 (CAS 528594-30-1)
Recommended Standards
- Urapidil Impurity 104 (CAS CATO-C4X-1924104)
- Bosutinib Impurity 7 (CAS 142072-71-7)
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- Nintedanib Impurity 165 (CAS 1351810-29-1)
- Pantoprazole Impurity 44 (CAS CATO-C4X-139944)
- Posaconazole Impurity 80 (CAS 1488301-79-6)
- rac-Clopidogrel EP Impurity A-D4 (CAS 1246814-52-7)
- 6-Methyl-2-pyridine aldehyde (CAS 1122-72-1)
- 9-(Methylthio)acridine 2,2,2-trifluoroacetate (CAS 88147-36-8)
- Methyl 4-phenylthiophene-3-carboxylate (CAS 38695-71-5)
- 5-Bromo-4-methylthiophene-2-carboxamide (CAS 189330-08-3)
- Methylstannanetriyl tris(2-ethylhexanoate) (CAS 62312-12-3)
- [(3Z)-5-Chloro-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 477864-51-0)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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