Dopamine Impurity 83 CAS CATO-C4X-190883
| CAS No. | CATO-C4X-190883 |
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Dopamine Impurity 83 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 167.16 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).
As a process- or degradation-related impurity, Dopamine Impurity 83 (CAS CATO-C4X-190883, C8H9NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Dopamine Impurity 83 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.
Physical & Chemical Properties
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 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, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 17 (CAS 1129-53-9)
- Dopamine Impurity 81 (CAS 68929-11-3)
- Dopamine Impurity 82 (CAS 5663-54-7)
- Dopamine Impurity 84 (CAS CATO-C4X-190884)
- Dopamine Impurity 99 (CAS CATO-C4X-190899)
- Dopamine EP Impurity A (CAS 3213-30-7)
- Dopamine EP Impurity B (CAS 554-52-9)
- Dopamine Impurity 43 (CAS 52846-75-0)
Recommended Standards
- Nicotine Impurity 15 (CAS 3612-80-4)
- Nicorandil Impurity 26 (CAS 14906-63-9)
- Phenacetin Impurity 13 (CAS 610-67-3)
- Pyridoxine Impurity 16 (CAS 58947-70-9)
- Betamethasone Impurity 111 (CAS CATO-C4X-1437111)
- Brivaracetam Impurity 128 (CAS CATO-C4X-2007128)
- Posaconazole Impurity 110 (CAS 74852-61-2)
- 4-amino-N-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]butanamide (CAS 2353563-41-2)
- N~1~,N~1~-Diallyl-4-methyl-1,2-benzenediamine (CAS 1220034-52-5)
- 1-(Azetidin-3-yl)piperidin-2-one dihydrochloride (CAS 2126177-75-9)
- 1-[(2-Chlorophenyl)methanesulfinyl]-2-nitrobenzene (CAS 955965-74-9)
- Neoeriocitrin (CAS 13241-32-2)
- Enarodustat Impurity 8 (CAS CATO-C4X-32288)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
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