Faropenem Impurity 11 CAS 120705-67-1
| CAS No. | 120705-67-1 |
| Molecular Formula | C21H33NO5SSi |
| Molecular Weight | 439.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Faropenem Impurity 11 (CAS 120705-67-1, C21H33NO5SSi) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C21H33NO5SSi, Faropenem Impurity 11 contains a steroid 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 439.64 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.
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.
CATO manufactures Faropenem Impurity 11 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 | C21H33NO5SSi |
| Molecular Weight | 439.64 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Faropenem Standards
- Faropenem Impurity 19 (CAS CATO-C4X-128919)
- Faropenem Impurity 14 (CAS CATO-C4X-128914)
- Faropenem Impurity 17 (CAS CATO-C4X-128917)
- Faropenem Impurity 18 (CAS CATO-C4X-128918)
- Faropenem daloxate (CAS 141702-36-5)
- Faropenem Impurity 79 (CAS CATO-C4X-128979)
- Faropenem Impurity 20 (CAS CATO-C4X-128920)
- Faropenem Impurity 41 (CAS CATO-C4X-128941)
Recommended Standards
- 6-[1-[(tert-Butyldimethylsilyl)oxy]ethyl]-7-oxo-3-(tetrahydro-3-furanyl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylicacid 2-propenylester (CAS 120705-71-7)
- (4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)(2,6-dichloropyridin-3-yl)methanone (CAS 1023821-24-0)
- Oxybutynin Impurity 14 (CAS CATO-C4X-197214)
- N-Boc-(+/-)-1-[{tert-butyl(diphenyl)silyl}oxy]pent-4-en-3-amine (CAS 1379812-36-8)
- Balsalazide Impurity 6 (CAS 1346606-13-0)
- Entacapone Impurity 62 (CAS CATO-C4X-162962)
- Atorvastatin Impurity 134 (CAS CATO-C4X-1132134)
- 1,20-Difluoroicosane (CAS 506-49-0)
- (4-Fluoro-6-isopropoxypyridin-3-yl)boronic acid (CAS 2225171-59-3)
- 1-(4-Chlorophenyl)-N-((3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)methyl)propan-1-amine (CAS 1031123-34-8)
- 2-Formylphenyl benzoate (CAS 19820-51-0)
- tert-Butyl 7’-fluoro-2’-oxo-2’,4’-dihydro-1’H-spiro[piperidine-4,3’-quinoline]-1-carboxylate (CAS 1393330-69-2)
- 1,2-Benzisothiazol-3(2H)-one,4-methoxy-,1,1-dioxide (CAS 92115-37-2)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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