Ziprasidone EP Impurity C acetate CAS 1798033-44-9
| CAS No. | 1798033-44-9 |
| Molecular Formula | C21H23ClN4O2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 491.00 g/mol gives Ziprasidone EP Impurity C acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ziprasidone EP Impurity C acetate (CAS 1798033-44-9) is a certified pharmaceutical impurity reference standard with the molecular formula C21H23ClN4O2SC2H4O2 and a molecular weight of 491.00 g/mol.
Ziprasidone EP Impurity C acetate (C21H23ClN4O2SC2H4O2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Ziprasidone EP Impurity C acetate 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 | C21H23ClN4O2S C2H4O2 |
| Molecular Weight | 491.00 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ziprasidone Standards
- Ziprasidone-d8 (CAS 1126745-58-1)
- Ziprasidone EP Impurity E (CAS 1159977-04-4)
- Ziprasidone EP Impurity B (CAS 1159977-56-6)
- Ziprasidone EP Impurity C (CAS 1159977-64-6)
- Ziprasidone Related Compound F (CAS 1159977-64-6 (free base))
- Ziprasidone Impurity 9 (CAS 118289-55-7)
- Ziprasidone Impurity 10 (CAS 118305-72-9)
- Ziprasidone impurity 55 (CAS 118305-72-9 (free base))
Recommended Standards
- Trelagliptin Impurity 7 HCl (CAS 1812193-01-3（free base）)
- Biapenem impurity 12 (CAS CATO-C4X-227312)
- Bambuterol EP Impurity C (Mixture of Enantiomers) (CAS 81732-67-4)
- (Boc-methyl)triphenylphosphonium Bromide (CAS 59159-39-6)
- (2S,3R)-2-amino-3-fluorobutanoic acid hydrochloride (CAS 2044705-45-3)
- 7-Chloro-2-methylthiazolo[5,4-d]pyrimidin-5-amine (CAS 1211584-94-9)
- 5-fluoro-2-(piperidin-2-yl)pyridine (CAS 1270471-87-8)
- N-Benzyl-4-chloro-5-methyl-2-nitroaniline (CAS 5098-21-5)
- 2-(2-Methoxyethoxy)-4-methyl-1,3-thiazole-5-carboxylic acid (CAS 1338494-94-2)
- Neuropeptide SF (human) (CAS 192387-39-6)
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