Dopamine Impurity 96 CAS CATO-C4X-190896
| CAS No. | CATO-C4X-190896 |
| Molecular Formula | C18H20N2O4 |
| Molecular Weight | 328.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Dopamine Impurity 96 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.
As a process- or degradation-related impurity, Dopamine Impurity 96 (CAS CATO-C4X-190896, C18H20N2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Dopamine Impurity 96 (C18H20N2O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C18H20N2O4 |
| Molecular Weight | 328.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ＞95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dopamine Standards
- Dopamine Impurity 115 (CAS CATO-C4X-1908115)
- Dopamine Impurity 116 (CAS CATO-C4X-1908116)
- Dopamine Impurity 117 (CAS CATO-C4X-1908117)
- Dopamine Impurity 58 (CAS 140165-60-2)
- Dopamine Impurity 69 (CAS CATO-C4X-190869)
- Dopamine Impurity 98 (CAS CATO-C4X-190898)
- Dopamine Impurity 119 (CAS 24997-85-1)
- Dopamine Impurity 106 (CAS CATO-C4X-1908106)
Recommended Standards
- Esmolol Impurity 42 (CAS CATO-C4X-189142)
- Gadoteridol Related Compound C (CAS 220182-19-4)
- Lisinopril impurity 29 (CAS 1496563-44-0)
- Tegoprazan Impurity 146 (CAS CATO-C4X-2297146)
- Safinamide Impurity 21 (CAS 590353-54-1)
- Limaprost Impurity 13 (CAS CATO-C4X-214513)
- Roxadustat Impurity 146 (CAS CATO-C4X-2213146)
- 3-Amino-7-hydroxy-2-methyl-4H-chromen-4-one (CAS 742008-52-2)
- 3-(6-Methyl-5,6-dihydrothiazolo[2,3-c][1,2,4]triazol-3-yl)aniline (CAS 681837-49-0)
- 1-(4-Chloro-2-fluorobenzyl)-1h-pyrazol-4-amine (CAS 1240565-79-0)
- 3-(2-Fluorophenyl)-1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 924287-94-5)
- 3-Methyl-6,7-dihydrobenzo[d]isoxazol-5(4H)-one (CAS 154928-96-8)
- Dobutamine Impurity 48 (CAS 1165-58-8)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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