Cefditoren Impurity 11 CAS CATO-C4X-135811
| CAS No. | CATO-C4X-135811 |
| Molecular Formula | C13H13N3O3S2 |
| Molecular Weight | 323.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cefditoren 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.
Cefditoren Impurity 11 (CAS CATO-C4X-135811) is a certified pharmaceutical impurity reference standard with the molecular formula C13H13N3O3S2 and a molecular weight of 323.39 g/mol.
Based on its molecular formula C13H13N3O3S2, Cefditoren Impurity 11 contains a nitrogen-containing heterocyclic scaffold, 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 323.39 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.
Physical & Chemical Properties
| Molecular Formula | C13H13N3O3S2 |
| Molecular Weight | 323.39 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefditoren Standards
- Cefditoren Impurity 21 (CAS CATO-C4X-135821)
- (E)-Cefditoren Impurity 28 (CAS CATO-C4X-135828)
- Cefditoren Impurity 7 (CAS 155723-02-7)
- Cefditoren Impurity 54 (CAS CATO-C4X-135854)
- Cefditoren Impurity 27 (CAS CATO-C4X-135827)
- Cefditoren Impurity 53 (CAS CATO-C4X-135853)
- Cefditoren (CAS 104145-95-1)
- Cefditoren Impurity 18 (CAS CATO-C4X-135818)
Recommended Standards
- Anastrozole Impurity 36 (CAS CATO-C4X-123936)
- Rosuvastatin Impurity 267 (CAS 1031246-43-1)
- Olopatadine impurity 146 (CAS CATO-C4X-1135146)
- Tert-butyl 6-(benzyloxy)-1H-indole-1-carboxylate (CAS 933474-39-6)
- Paliperidone Impurity 18 (CAS CATO-C4X-172418)
- Levofloxacin impurity 77 (CAS CATO-C4X-137177)
- Paclitaxel Impurity 34 (CAS 71629-92-0)
- 5-(Benzyloxy)-N-(1-benzylpiperidin-4-yl)-4-oxo-4H-pyran-2-carboxamide (CAS 1021209-02-8)
- 1-ethylpyrazole-4-carbonitrile (CAS 1006434-01-0)
- 1,6-Dihydropyrimido[4,5-g]pteridine-2,4,7,9(3H,8H)-tetraone (CAS 116055-86-8)
- 2-Amino-N-(thiazol-2-yl)benzamide (CAS 33373-89-6)
- 1-Ethyl-N-propyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 805981-66-2)
- 4-Fluoro-2-morpholinoaniline (CAS 232951-87-0)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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