Levodopa Impurity N2 CAS 55-59-4
| CAS No. | 55-59-4 |
| Molecular Formula | C11H15NO4 |
| Molecular Weight | 225.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levodopa Impurity N2 (CAS 55-59-4) is a certified pharmaceutical impurity reference standard with the molecular formula C11H15NO4 and a molecular weight of 225.24 g/mol.
Based on its molecular formula C11H15NO4, Levodopa Impurity N2 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 225.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Levodopa Impurity N2 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 | C11H15NO4 |
| Molecular Weight | 225.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Levodopa Standards
- Levodopa Impurity 18 (CAS 33605-56-0)
- Levodopa Impurity 23 (CAS 75290-51-6)
- Levodopa EP Impurity C-d3 (S-isomer) (L-3-O-Methyldopa-d3) (CAS 586954-09-8)
- Rac-Levodopa EP Impurity A (CAS 21373-30-8)
- Levodopa EP Impurity A (CAS 27244-64-0)
- Levodopa EP Impurity C (CAS 7636-26-2)
- Levodopa EP Impurity C (CAS 15402-76-3)
- Levodopa EP Impurity C (S-Isomer) (CAS 300-48-1)
Recommended Standards
- Ingavirin (CAS 219694-63-0)
- Mephenesin Carbamate (CAS 533-06-2)
- Ethyl N-[(2Z)-2-cyano-2-[1-(dimethylamino)ethylidene]acetyl]carbamate (CAS 339018-11-0)
- Methyl 1-Boc-pyrrole-2-carboxylate (CAS 294659-30-6)
- Isavuconazole impurity 77 (CAS CATO-C4X-1236177)
- Mirabegron Impurity 77 DiHCl (CAS CATO-C4X-103277)
- Pioglitazone impurity 43 (CAS CATO-C4X-138343)
- 2-Methyl-2-phenylpent-4-enal (CAS 24401-39-6)
- 3-Bromo-2-ethoxy-5-isopropylbenzaldehyde (CAS 2404734-08-1)
- 8-Chloro-3,5-dimethylimidazo[1,2-a]pyrazine (CAS 143591-89-3)
- 1-(2-amino-3-bromo-5-methoxyphenyl)ethan-1-one (CAS 801235-18-7)
- Fmoc-Asn(Dmcp)-OH (CAS 172947-19-2)
- (R)-1-Benzyl 5-methyl 2-((tert-butoxycarbonyl)amino)pentanedioate (CAS 883985-06-6)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
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