Dopamine Impurity 75 CAS 32602-66-7
| CAS No. | 32602-66-7 |
| Molecular Formula | C10H15NO2 |
| Molecular Weight | 181.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Dopamine Impurity 75 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.
CATO supplies Dopamine Impurity 75 (CAS 32602-66-7), a pharmacopoeial impurity reference standard (molecular formula C10H15NO2, MW 181.23 g/mol) used for the identification and quantification of trace impurities in APIs.
Dopamine Impurity 75 (C10H15NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
Physical & Chemical Properties
| Molecular Formula | C10H15NO2 |
| Molecular Weight | 181.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1966 |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 14 (CAS 21581-37-3)
- Dopamine Impurity 29 (CAS 15806-29-8)
- Dopamine Impurity 31 (CAS 3213-28-3)
- Dopamine EP Impurity C (CAS 120-20-7)
- Dopamine Impurity 85 (CAS 763024-20-0)
- Dopamine Impurity 86 (CAS 74321-37-2)
- Dopamine Impurity 94 (CAS CATO-C4X-190894)
- Dopamine Impurity 3 (CAS 108074-44-8)
Recommended Standards
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- Orforglipron Impurity 56 (CAS CATO-C4X-323456)
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- Afatinib Impurity 17 (CAS CATO-C4X-100617)
- 1-(5-Hydroxy-4-methoxy-2-methylphenyl)ethanone (CAS 6948-37-4)
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- 6-(4-Fluorophenyl)-3-(methoxycarbonyl)picolinic acid (CAS 1443286-45-0)
- (2,3-Difluorophenyl)(quinolin-3-yl)methanone (CAS 1187166-32-0)
- (3,5-Dichloro-2-methoxyphenyl)methanamine (CAS 1154390-70-1)
- 2-(3-Phenyl-1H-pyrazol-5-yl)aniline (CAS 178114-23-3)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com