Ampicillin Impurity 103 CAS CATO-C4X-1443103
| CAS No. | CATO-C4X-1443103 |
| Molecular Formula | C19H27N3O5S |
| Molecular Weight | 409.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ampicillin Impurity 103 (CAS CATO-C4X-1443103) is a certified pharmaceutical impurity reference standard with the molecular formula C19H27N3O5S and a molecular weight of 409.50 g/mol.
Based on its molecular formula C19H27N3O5S, Ampicillin Impurity 103 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 409.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Ampicillin Impurity 103 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 | C19H27N3O5S |
| Molecular Weight | 409.50 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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 | 3 |
| Sulfur Atoms | 1 |
Related Ampicillin Standards
- Ampicillin Impurity 73 (CAS CATO-C4X-144373)
- Ampicillin Impurity 91 (CAS CATO-C4X-144391)
- Ampicillin Impurity 84 (CAS CATO-C4X-144384)
- Ampicillin Impurity 39 (CAS CATO-C4X-144339)
- Ampicillin Impurity 92 (CAS CATO-C4X-144392)
- Ampicillin Impurity 87 (CAS CATO-C4X-144387)
- Ampicillin Impurity 82 (CAS CATO-C4X-144382)
- Ampicillin Impurity 94 (CAS CATO-C4X-144394)
Recommended Standards
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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