Dopamine Impurity 93 CAS CATO-C4X-190893
| CAS No. | CATO-C4X-190893 |
| Molecular Formula | C20H28N2O4 |
| Molecular Weight | 360.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Dopamine Impurity 93 (CAS CATO-C4X-190893) is a certified pharmaceutical impurity reference standard with the molecular formula C20H28N2O4 and a molecular weight of 360.45 g/mol.
Dopamine Impurity 93 (C20H28N2O4) 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 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).
CATO manufactures Dopamine Impurity 93 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 | C20H28N2O4 |
| Molecular Weight | 360.45 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dopamine Standards
- Dopamine Impurity 47 (CAS 315188-82-0)
- 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 119 (CAS 24997-85-1)
- Dopamine Impurity 58 (CAS 140165-60-2)
- Dopamine Impurity 96 (CAS CATO-C4X-190896)
- Dopamine Impurity 115 (CAS CATO-C4X-1908115)
Recommended Standards
- Apixaban Impurity 78 (CAS CATO-C4X-108878)
- Rosiglitazone-d3 (CAS 1132641-22-5)
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- Perospirone Impurity 7 (CAS CATO-C4X-24587)
- Ciprofloxacin Impurity 50 (CAS CATO-C4X-136250)
- Ceritinib Impurity 62 (CAS CATO-C4X-104862)
- Spectinomycin impurity 3 (CAS CATO-C4X-22163)
- (S)-3-(2-Bromo-4-fluorophenoxy)pyrrolidine hydrochloride (CAS 960491-91-2)
- 1-Benzyl 2-methyl (2R,4R)-4-aminopyrrolidine-1,2-dicarboxylate (CAS 1217598-31-6)
- 8-Chloro-2-phenylquinazolin-4(3H)-one (CAS 19407-55-7)
- N-(carbamothioylamino)-2-phenylacetamide (CAS 29313-28-8)
- N-[4-chloro-2-(trifluoromethoxy)phenyl]-2,6-difluoro-3-nitrobenzamide (CAS 260442-73-7)
- N-(3,5-dichlorophenyl)-2-((1-phenyl-1H-tetrazol-5-yl)thio)acetamide (CAS 329079-99-4)
- Tau Peptide (277-291) trifluoroacetate salt (CAS 330456-40-1)
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