(E)-Cefditoren Impurity 28 CAS CATO-C4X-135828
| CAS No. | CATO-C4X-135828 |
| Molecular Formula | C13H13N3O3S2 |
| Molecular Weight | 323.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
(E)-Cefditoren Impurity 28 (C13H13N3O3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, (E)-Cefditoren Impurity 28 (CAS CATO-C4X-135828, C13H13N3O3S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 (E)-Cefditoren Impurity 28 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 | 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 E Standards
- Cefditoren Impurity 11 (CAS CATO-C4X-135811)
- Cefditoren Impurity 21 (CAS CATO-C4X-135821)
- 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
- Zolpidem Impurity 1 (CAS 109461-64-5)
- Anastrozole Impurity 36 (CAS CATO-C4X-123936)
- Olotadine lmpurity 55 (CAS CATO-C4X-171855)
- Rosuvastatin Impurity 267 (CAS 1031246-43-1)
- Arginine impurity 11 (CAS CATO-C4X-242411)
- Moxifloxacin impurity 128 (CAS CATO-C4X-1074128)
- Loxoprofen Impurity 50 (CAS 111128-12-2)
- Bz-Phe-Val-Arg-AMC (CAS 88899-22-3)
- 1-(5,6,7,8-Tetrahydroquinazolin-4-yl)pyrrolidin-3-amine (CAS 1505362-15-1)
- (6aR,6bS)-3,10-Diamino-14-methyl-5,6,6a,6b,7,8-hexahydro-2H-pyrimido[4'',5'':2',3'][1,4]diazepino[6',5':3,4]pyrrolo[1,2-f]pteridine-1,12-dione (CAS 33466-46-5)
- 1-(5-Methyl-1-methyl-1h-indol-3-yl)-ethanone (CAS 116176-90-0)
- 2-(((2-Amino-5-chlorophenyl)(phenyl)methylene)amino)ethan-1-ol (CAS 2109-45-7)
- 2-Bromo-5-methoxy-3,4-dihydronaphthalen-1(2H)-one (CAS 31236-91-6)
- Semaglutide impurity 56 (CAS CATO-C4X-222656)
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