Ceftriaxone Impurity 22 CAS CATO-C4X-116322
| CAS No. | CATO-C4X-116322 |
| Molecular Formula | C18H18N8O7S3 |
| Molecular Weight | 554.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ceftriaxone Impurity 22 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, Ceftriaxone Impurity 22 (CAS CATO-C4X-116322, C18H18N8O7S3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H18N8O7S3, Ceftriaxone Impurity 22 contains a flavonoid core, 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 554.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C18H18N8O7S3 |
| Molecular Weight | 554.58 g/mol |
| Purity | >90% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 3 |
Related Ceftriaxone Standards
- Ceftriaxone EP Impurity A (CAS 92143-31-2)
- Ceftriaxone Impurity 11 (CAS CATO-C4X-116311)
- Δ3-Ceftriaxone Isomer Impurity (CAS CATO-C4X-116314)
- Ceftriaxone Impurity 40 (CAS CATO-C4X-116340)
- Ceftriaxone Impurity 44 (CAS CATO-C4X-116344)
- Ceftriaxone impurity 53 (CAS CATO-C4X-116353)
- Ceftriaxone (CAS 73384-59-5)
- Ceftriaxone Impurity 27 (CAS CATO-C4X-116327)
Recommended Standards
- (6R,7S)-Ceftriaxone Impurity (CAS CATO-C4X-116316)
- Cloxacillin Impurity 24 (CAS CATO-C4X-159724)
- Ubrogepant D5 (CAS CATO-C4X-34025)
- Relugolix Impurity 116 (CAS 2814571-32-7)
- Aceclidine Impurity 5 (CAS 6821-59-6)
- Lenvatinib Impurity 63 (CAS 2380197-89-5)
- Bifendate impurity N4 (CAS 81474-47-7)
- 1-(3,4-Dimethylphenyl)-3,3-dimethylbutan-1-one (CAS 898764-56-2)
- (S)-8-Bromo-1-(2-methoxypropyl)-1H-imidazo[4,5-c]quinolin-2(3H)-one (CAS 1369532-69-3)
- 2-{2-[2-(tert-Butyl)-4-chlorophenoxy]-ethyl}piperidine hydrochloride (CAS 1220030-78-3)
- 1-Amino-n-methylcyclohexane-1-carboxamide hydrochloride (CAS 1181458-43-4)
- Tert-butyl n-[3-phenyl-2-(piperidin-2-yl)propyl]carbamate (CAS 1306606-80-3)
- 5-Bromo-1-propyl-1h-pyrazole (CAS 1427021-01-9)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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