Cefodizime Impurity 3 CAS 111298-82-9
| CAS No. | 111298-82-9 |
| Molecular Formula | C14H15N3O5S3 |
| Molecular Weight | 401.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefodizime Impurity 3 (CAS 111298-82-9), a pharmacopoeial impurity reference standard (molecular formula C14H15N3O5S3, MW 401.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C14H15N3O5S3, Cefodizime Impurity 3 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 401.48 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.
As a certified reference material (CRM), Cefodizime Impurity 3 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H15N3O5S3 |
| Molecular Weight | 401.48 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 3 |
Related Cefodizime Standards
- Cefodizime Open-Ring Impurity (CAS CATO-C4X-180620)
- Cefodizime Impurity 2 (CAS CATO-C4X-18062)
- Cefodizime Impurity 3 (CAS 24209-43-6)
- Cefodizime Impurity 15 (CAS CATO-C4X-180615)
- Cefodizime Impurity 24 (CAS CATO-C4X-180624)
- Cefodizime Impurity 5 (CAS 120533-30-4)
- Cefodizime Impurity 6 (CAS 97180-26-2)
- Cefodizime Impurity 7 (CAS CATO-C4X-18067)
Recommended Standards
- Meropenem EP Impurity A (CAS 1053703-36-8)
- Daprodustat-D8 (CAS 2250290-94-7)
- Meropenem Impurity 40 (CAS CATO-C4X-130940)
- Thiocolchicoside Impurity 1 (CAS 87424-25-7)
- Venetoclax Impurity 140 (CAS CATO-C4X-2495140)
- Megestrol acetate EP Impurity G (CAS 1259198-59-8)
- Carbamazepine Impurity 28 (CAS 866873-98-5)
- Ethyl (E)-3-(4-(tert-butyl)phenyl)acrylate (CAS 158010-17-4)
- 5-((3,4-Dichlorophenoxy)methyl)-4,5-dihydrooxazol-2-amine (CAS 51230-28-5)
- 4-Bromo-N-(4-fluorobenzyl)aniline (CAS 356531-51-6)
- (2,4,5-Trimethylphenyl)methanol (CAS 4393-05-9)
- Tert-butyl ((1-hydroxycyclohexyl)methyl)carbamate (CAS 885954-83-6)
- Ketoprofen impurity 74 (CAS 24021-49-6)
- Calcitonin C-Terminal Flanking Peptide (human) XTFA (CAS 85916-47-8（free base）)
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