Cefmenoxime HCl CAS 75738-58-8
| CAS No. | 75738-58-8 |
| Molecular Formula | 2*C16H17N9O5S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| 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.
Cefmenoxime HCl (CAS 75738-58-8) is a high-purity analytical reference standard with the molecular formula C16H17N9O5S3HCl and a molecular weight of 548.01 g/mol.
The molecular framework of Cefmenoxime HCl (C16H17N9O5S3HCl) is characterized by a flavonoid 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 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | 2*C16H17N9O5S3 HCl |
| Molecular Weight | 548.01 g/mol |
| Purity | >95% |
| 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.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 3 |
Related Cefmenoxime Standards
- Cefmenoxime Impurity 3 (CAS 126747-52-2)
- Cefmenoxime Impurity 1 (CAS 184696-69-3)
- Cefmenoxime Impurity 40 (CAS 21566-74-5)
- Cefmenoxime Impurity 2 (CAS 66340-45-2)
- Cefmenoxime Impurity C14 (CAS 68350-02-7)
- Cefmenoxime Impurity 10 (CAS CATO-C4X-147710)
- Cefmenoxime Impurity 11 (CAS CATO-C4X-147711)
- Cefmenoxime Impurity 12 (CAS CATO-C4X-147712)
Recommended Standards
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- 3-bromo-8-methyl-naphthalen-1-amine (CAS 2387599-23-5)
- [D-Glu]3-Semaglutide (CAS CATO-C4X-2226253)
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