Cefprozil EP Impurity L CAS 203007-73-2
| CAS No. | 203007-73-2 |
| Molecular Formula | C10H13NO4 |
| Molecular Weight | 211.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefprozil EP Impurity L.
CATO supplies Cefprozil EP Impurity L (CAS 203007-73-2), a pharmacopoeial impurity reference standard (molecular formula C10H13NO4, MW 211.21 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C10H13NO4, Cefprozil EP Impurity L 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 211.21 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 Cefprozil EP Impurity L 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 | C10H13NO4 |
| Molecular Weight | 211.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >80% |
| 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.) | 2015 |
| Nitrogen Atoms | 1 |
Related Cefprozil Standards
- Cefprozil EP Impurity C(Cefadroxil EP Impurity E) (CAS 147103-93-3)
- Cefprozil EP Impurity F (CAS 107937-01-9)
- Cefprozil EP Impurity D (CAS 106447-44-3)
- Cefprozil Impurity 46 (CAS 120709-09-3)
- Cefprozil impurity 64 (CAS CATO-C4X-149264)
- Cefprozil impurity 65 (CAS CATO-C4X-149265)
- Cefprozil impurity 66 (CAS 132313-55-4)
- Cefprozil impurity 67 (CAS CATO-C4X-149267)
Recommended Standards
- Pantoprazole Impurity 33 (CAS 102625-99-0)
- Levodopa EP Impurity C (CAS 7636-26-2)
- Ilaprazole impurity 192 (CAS CATO-C4X-1130192)
- Levodopa EP Impurity C (CAS 15402-76-3)
- Nafamostat Impurity 58 (CAS CATO-C4X-133258)
- Edaravone Impurity 22 (CAS 300543-31-1)
- Apixaban Impurity 79 (CAS 2435783-75-6)
- Pyridine-2-carboxylic acid (2-amino-phenyl)-amide dihydrochloride (CAS 1185303-36-9)
- Diethyl cyclopentane-1,1-dicarboxylate (CAS 4167-77-5)
- N-Acetyl-N-(2,2-dimethoxyethyl)-2’-hydroxybenzylamine (CAS 1346604-58-7)
- 3-[(4-methylpentan-2-yl)oxy]propanoic acid (CAS 1016876-66-6)
- 1,2,4-Trichloro-3-(chloromethyl)benzene (CAS 1424-79-9)
- 3-(1,5-Dimethyl-1h-pyrazol-4-yl)prop-2-en-1-ol (CAS 1563235-00-6)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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