7-Amino-3-chloromethyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester HCl CAS 79349-53-4
| CAS No. | 79349-53-4 |
| Molecular Formula | C21H19ClN2O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Amino-3-chloromethyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester HCl (CAS 79349-53-4), a certified reference material (molecular formula C21H19ClN2O3SHCl, MW 451.36 g/mol) for analytical method development and quality control.
The molecular framework of 7-Amino-3-chloromethyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester HCl (C21H19ClN2O3SHCl) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 7-Amino-3-chloromethyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester HCl 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 | C21H19ClN2O3S HCl |
| Molecular Weight | 451.36 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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