Ceftazidime Dihydrochloride CAS 73547-70-3
| CAS No. | 73547-70-3 |
| Molecular Formula | C22H23N6O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ceftazidime Dihydrochloride (CAS 73547-70-3), molecular formula C22H23N6O7S2HClCl and molecular weight 619.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H23N6O7S2HClCl, Ceftazidime Dihydrochloride 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 619.49 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ceftazidime Dihydrochloride 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 | C22H23N6O7S2 HCl Cl |
| Molecular Weight | 619.49 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Ceftazidime Standards
- Ceftazidime EP Impurity A (CAS 1000980-60-8)
- Ceftazidime Pentahydrate - Impurity C (Iodide Salt) (CAS 100988-63-4)
- Ceftazidime EP Impurity E (CAS 102772-66-7)
- Ceftazidime Hydrate (CAS 120618-65-7)
- Ceftazidime Impurity 13 (CAS 1301254-50-1)
- Ceftazidime Impurity 46 (CAS 134203-50-2)
- Ceftazidime EP Impurity H (CAS 1354396-23-8)
- Ceftazidime Impurity 23 (CAS 158183-05-2)
Recommended Standards
- 2-Amino-3,3-dimethylbutanenitrile hydrochloride (CAS 1803596-52-2)
- Methyl (S)-3-amino-3-(3-(trifluoromethyl)phenyl)propanoate (CAS 1228570-45-3)
- Diethyl malonimidate hydrochloride (CAS 878766-81-5)
- 2-Bromo-N-methoxy-N-methylpyridine-3-carboxamide (CAS 1260913-24-3)
- 5-(Trifluoromethoxy)pyridin-3-amine hydrochloride (CAS 2841453-88-9)
- 3-(5-Ethylbenzo[d]oxazol-2-yl)aniline (CAS 312587-09-0)
- 4'-(Decyloxy)-[1,1'-biphenyl]-4-carboxylic acid (CAS 69367-32-4)
- (2-Amino-7-fluorobenzo[d]thiazol-4-yl)boronic acid (CAS 2730529-46-9)
- 4-Oxo-2-phenyl-1,4-dihydroquinoline-8-carboxylic acid (CAS 90034-64-3)
- Neuropeptide Y (1-24) amide (human, rat) (CAS 131448-51-6)
Why CATO?
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