Dopamine Impurity 47 CAS 315188-82-0
| CAS No. | 315188-82-0 |
| Molecular Formula | C20H22N2O6 |
| Molecular Weight | 386.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Dopamine Impurity 47 (C20H22N2O6) contains a flavonoid core, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Dopamine Impurity 47 (CAS 315188-82-0) is a certified pharmaceutical impurity reference standard with the molecular formula C20H22N2O6 and a molecular weight of 386.40 g/mol.
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 47 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 | C20H22N2O6 |
| Molecular Weight | 386.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Dopamine Standards
- Dopamine Impurity 89 (and Enantiomer) (CAS 482579-01-1)
- Dopamine Impurity 90 (CAS 1519015-73-6)
- Dopamine Impurity 121 (CAS CATO-C4X-1908121)
- Dopamine Impurity 76 (CAS CATO-C4X-151476)
- Dopamine Impurity 93 (CAS CATO-C4X-190893)
- Dopamine Impurity 119 (CAS 24997-85-1)
- Dopamine Impurity 58 (CAS 140165-60-2)
- Dopamine Impurity 96 (CAS CATO-C4X-190896)
Recommended Standards
- Nisoldipine USP Related Compound D (CAS 103026-83-1)
- Fenofibrate Impurity 9 (CAS CATO-C4X-16439)
- Nimesulide EP Impurity F (CAS 51765-72-1)
- Podophyllotoxin Impurity 1 (CAS 1173-42-8)
- Olaparib Impurity 164 (CAS CATO-C4X-1135164)
- Lenvatinib Impurity 10 (CAS 97480-55-2)
- Beclometasone Dipropionate Monohydrate EP Impurity L (CAS 114371-33-4)
- 2-(1-Oxo-2,3-dihydro-1h-isoindol-2-yl)acetaldehyde (CAS 1163250-37-0)
- N-[2-(Pyridin-3-yl)pyrimidin-4-yl]propanamide (CAS 866143-42-2)
- 3-Amino-4-cyclobutyl-2-oxobutanamide (CAS 816444-95-8)
- N-(benzo[d][1,3]dioxol-5-ylmethyl)acetamide (CAS 59682-83-6)
- 3-(3-Methoxyphenyl)-2-(5-methyl-1h-1,2,3,4-tetrazol-1-yl)prop-2-enoic acid (CAS 929972-63-4)
- a-Amino-4-ethyl-cyclohexaneacetic acid hydrochloride (CAS 1344280-49-4)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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