Cefteram Pivoxil Impurity 3 CAS 98157-80-3
| CAS No. | 98157-80-3 |
| Molecular Formula | C16H22N6O5S |
| Molecular Weight | 410.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefteram Pivoxil Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 410.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Cefteram Pivoxil Impurity 3 (CAS 98157-80-3), molecular formula C16H22N6O5S and molecular weight 410.45 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C16H22N6O5S |
| Molecular Weight | 410.45 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Cefteram Standards
Recommended Standards
- 4,5-Diphenyl-2-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)-1H-imidazole (CAS 339277-11-1)
- Fluticasone Impurity 56 (CAS 28416-84-4)
- 3-((6-(Adamantan-1-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)propanoic acid (CAS 625377-28-8)
- Methyl 2-((6-(adamantan-1-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)acetate (CAS 489463-13-0)
- Bis-PEG7-acid (CAS 94376-75-7)
- 3-(3-Chloropropyl)pyridine hydrochloride (CAS 17944-58-0)
- 5-Bromo-2-isobutoxy-3-nitropyridine (CAS 1250043-16-3)
- Thiamine disulfide (dinitrate) (CAS 109125-52-2)
- 1-(4-Hydroxy-3,4-dihydroquinolin-1(2h)-yl)-2-methylpropan-1-one (CAS 1328502-30-2)
- 1,1'-((2,3,5,6-Tetramethyl-1,4-phenylene)bis(methylene))bis(1H-imidazole) (CAS 1012075-54-5)
- 4-((tert-Butoxycarbonyl)amino)-1H-pyrrole-3-carboxylic acid (CAS 903094-22-4)
- 2-(4-Chlorobutyl)-1,2-benzisothiazol-3(2H)-one (CAS 155289-15-9)
- (2s)-2-Amino-n-ethyl-n,3-dimethylbutanamide (CAS 1308930-90-6)
- Experimental Allergic Encephalitogenic Peptide (CAS 29705-92-8)
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