Dopamine Impurity 79 CAS 2097441-90-0
| CAS No. | 2097441-90-0 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Dopamine Impurity 79 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Dopamine Impurity 79 (CAS 2097441-90-0), a pharmacopoeial impurity reference standard (molecular formula C9H11NO2, MW 165.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Dopamine Impurity 79 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 165.19 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).
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 | C9H11NO2 |
| Molecular Weight | 165.19 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 28 (CAS 1484-85-1)
- Dopamine Impurity 43 (CAS 52846-75-0)
- Dopamine Impurity 17 (CAS 1129-53-9)
- Dopamine Impurity 81 (CAS 68929-11-3)
- Dopamine Impurity 82 (CAS 5663-54-7)
- Dopamine Impurity 83 (CAS CATO-C4X-190883)
- Dopamine Impurity 84 (CAS CATO-C4X-190884)
- Dopamine Impurity 99 (CAS CATO-C4X-190899)
Recommended Standards
- Carteolol EP Impurity A (CAS 5057-12-5)
- Lenalidomide Impurity 14 (CAS 18583-89-6)
- Carteolol Impurity 30 (CAS CATO-C4X-228730)
- Esmolol Impurity 59 (CAS 22367-76-6)
- Peridine Impurity 15 (CAS 1690-75-1)
- Nifedipine Impurity 35 (CAS CATO-C4X-141035)
- Methoxamine Impurity 15 (CAS CATO-C4X-202215)
- 2-(Diphenylphosphino)-N,N-diethylbenzamide (CAS 143024-49-1)
- 2-(Furan-2-yl)-5-(piperidin-3-yl)-1,3,4-oxadiazole (CAS 1105189-75-0)
- 4-(Trifluoromethoxy)quinoline (CAS 1261869-90-2)
- 2-(1-(4-Methoxy-2-methylphenyl)-3,5-dimethyl-1H-pyrazol-4-yl)acetic acid (CAS 1416346-33-2)
- N1,N4-bis(4-chlorophenyl)-2,5-dimethylpiperazine-1,4-dicarboxamide (CAS 1023821-26-2)
- 7-Bromo-5-fluoro-3-methyl-1h-indole (CAS 883001-24-9)
- Semaglutide impurity 29 (CAS 110990-08-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com