Levodopa Impurity 15 CAS 2323070-48-8
| CAS No. | 2323070-48-8 |
| Molecular Formula | C18H10N2O4 |
| Molecular Weight | 318.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Levodopa Impurity 15 (CAS 2323070-48-8), a pharmacopoeial impurity reference standard (molecular formula C18H10N2O4, MW 318.28 g/mol) used for the identification and quantification of trace impurities in APIs.
Levodopa Impurity 15 (C18H10N2O4) 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. 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 | C18H10N2O4 |
| Molecular Weight | 318.28 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 2 |
Related Levodopa Standards
- Levodopa Impurity 9 (CAS 2901-78-2)
- Levodopa Impurity 6 (CAS 18692-68-7)
- Levodopa Impurity 17 (CAS 27313-65-1)
- Levodopa Impurity 19 (CAS 28305-04-6)
- Levodopa Impurity 20 (CAS 33043-37-7)
- Levodopa Impurity 24 (CAS CATO-C4X-167624)
- Levodopa Impurity 25 (CAS CATO-C4X-167625)
- Levodopa Impurity 26 (CAS CATO-C4X-167626)
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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