Cefepime Impurity 18 CAS CATO-C4X-119318
| CAS No. | CATO-C4X-119318 |
| Molecular Formula | C20H27N6O5S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Cefepime Impurity 18 (CAS CATO-C4X-119318) is a certified pharmaceutical impurity reference standard with the molecular formula C20H27N6O5S2Cl and a molecular weight of 531.04 g/mol.
Based on its molecular formula C20H27N6O5S2Cl, Cefepime Impurity 18 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 531.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Cefepime Impurity 18 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 | C20H27N6O5S2 Cl |
| Molecular Weight | 531.04 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Cefepime Standards
- Cefepime EP Impurity E(HCl) (CAS 103121-85-3)
- Cefepime Dihydrochloride Monohydrate EP Impurity E (CAS 103296-32-8)
- Cefepime EP Impurity C (CAS 104301-63-5)
- Cefepime Impurity 29 (CAS 110-56-5)
- Cefepime EP Impurity E (CAS 110026-16-9)
- Cefepime EP Impurity D Potassium Salt (CAS 112097-97-9)
- Cefepime Impurity 20 (CAS 112533-07-0)
- Cefepime Impurity C56 (CAS 113703-50-7)
Recommended Standards
- Quetiapine EP Impurity J DiHCl (CAS 1825392-15-1)
- Ceftibuten Impurity 8 (CAS 97519-40-9)
- Palbociclib Impurity 166 (CAS CATO-C4X-1125166)
- 2-Amino-4-(3-chlorophenyl)thiophene-3-carboxylic acid (CAS 899691-53-3)
- 1-(4-Butoxy-3,5-difluorophenyl)-2,2,2-trifluoroethan-1-one (CAS 1443344-05-5)
- Isoxazolo[5,4-d]pyrimidine (CAS 272-04-8)
- 2-((Furan-2-ylmethyl)(methyl)amino)-2-oxoacetic acid (CAS 934489-50-6)
- 3-Cyclopropoxy-6-(methylthio)pyridine-2-sulfonamide (CAS 1243401-94-6)
- 1,2-Diethyl (1R,2S)-rel-cyclohex-4-ene-1,2-dicarboxylate (CAS 4841-85-4)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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