Ceftazidime Impurity C19 CAS 217796-42-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 217796-42-4 |
| Molecular Formula | C22H23N6O7S2 |
| Molecular Weight | 547.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ceftazidime Impurity C19 (CAS 217796-42-4) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C22H23N6O7S2. Molecular weight: 547.58 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C22H23N6O7S2 |
| Molecular Weight | 547.58 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 |
| Degree of Unsaturation (DBE) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Ceftazidime Standards
- Ceftazidime Impurity 52 (CAS CATO-C4X-121252)
- Ceftazidime Impurity 74 (CAS CATO-C4X-121274)
- Ceftazidime EP Impurity A (CAS 1000980-60-8)
- Ceftazidime EP Impurity B (CAS 97148-38-4)
- Ceftazidime Impurity 56 (CAS CATO-C4X-121256)
- Ceftazidime (contains ca. 10% Na2CO3) (CAS 72558-82-8)
- Ceftazidime impurity 125 (CAS CATO-C4X-1212125)
- Ceftazidime-d5 (CAS CATO-CCAD303625)
Recommended Standards
- Relugolix Impurity N4 (CAS 1589503-97-8)
- Vonoprazan Impurity 191 (CAS CATO-C4X-1020191)
- Relugolix Impurity 76 (CAS CATO-C4X-242976)
- Allisartan Isoproxil Impurity 27 (CAS 947331-07-9)
- Olaparib Impurity 42 (CAS CATO-C4X-113542)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(morpholin-4-yl)-2-[3-(trifluoromethyl)phenyl]acetonitrile (CAS 338770-56-2)
- Tri-p-tolylamine-d21 (CAS 201944-90-3)
- 3-Chloro-N-methylbenzo[b]thiophene-2-carboxamide (CAS 299929-76-3)
- 7-Hydroxy-5-oxo-2,3-dihydro-1H-indolizine-3,8-dicarboxylic acid (CAS 1803347-45-6)
- Cyclopeptide-5 (CAS 197172-76-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com