Ceftizoxime Impurity 16 CAS 36923-17-8
| CAS No. | 36923-17-8 |
| Molecular Formula | C7H8N2O3S |
| Molecular Weight | 200.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ceftizoxime Impurity 16 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.
As a process- or degradation-related impurity, Ceftizoxime Impurity 16 (CAS 36923-17-8, C7H8N2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ceftizoxime Impurity 16 (C7H8N2O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 200.22 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H8N2O3S |
| Molecular Weight | 200.22 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ceftizoxime Standards
- Ceftizoxime Impurity 12 (CAS 90712-49-5)
- Ceftizoxime Impurity 9 (CAS 64918-77-0)
- Ceftizoxime Impurity 13 (CAS 68403-70-3)
- Ceftizoxime Impurity 39 (CAS 26531-82-8)
- Ceftizoxime impurity 96 (CAS CATO-C4X-179396)
- Ceftizoxime Impurity 80 (CAS 2922677-22-1)
- Ceftizoxime Impurity 54 (CAS CATO-C4X-179354)
- Ceftizoxime Impurity 7 (CAS CATO-C4X-17937)
Recommended Standards
- (6R,7S)-Ceftizoxime Impurity 28 (CAS 1932625-97-2)
- Cefotaxime Impurity 92 (CAS 1201851-24-2)
- 7-ANCA Impurity 3（containing triethylamine） (CAS CATO-C4X-23153)
- (Z)-Cefotaxime Impurity 19 (CAS 98368-23-1)
- Indoxacarb Impurity 3 (CAS 127296-24-6)
- Procaterol Impurity 14 (CAS 90098-93-4)
- Dexamethasone Impurity 55 (CAS CATO-C4X-116555)
- Acetyl-δ-Endorphin (bovine, camel, mouse, ovine) (CAS 78325-29-8)
- 1,4,5,8-Tetraamino-2-bromo-6-methoxyanthracene-9,10-dione (CAS 88602-93-1)
- 1-(3-Cyclohexylureido)-1-oxopropan-2-yl 2-(methylthio)nicotinate (CAS 851396-85-5)
- Lipoic Acid (CAS 62-46-4)
- 1-Chloro-4-ethoxy-2,5-difluorobenzene (CAS 1805225-21-1)
- Imidazo[5,1-f][1,2,4]triazine-2,7-diamine (CAS 51292-20-7)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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