Ziprasidone Impurity 30 CAS 188797-80-0
| CAS No. | 188797-80-0 |
| Molecular Formula | C21H21ClN4O2S |
| Molecular Weight | 428.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ziprasidone Impurity 30 (C21H21ClN4O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 428.94 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ziprasidone Impurity 30 (CAS 188797-80-0) is a certified pharmaceutical impurity reference standard with the molecular formula C21H21ClN4O2S and a molecular weight of 428.94 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H21ClN4O2S |
| Molecular Weight | 428.94 g/mol |
| Purity | >95% |
| 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.) | 2010 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ziprasidone Standards
- Ziprasidone Impurity 11 (CAS 188797-76-4)
- Ziprasidone Impurity 12 (CAS 884305-08-2)
- Ziprasidone Impurity 59 (CAS CATO-C4X-124059)
- Ziprasidone EP Impurity C (CAS 1159977-64-6)
- Ziprasidone Impurity 24 (CAS 884305-07-1)
- Ziprasidone EP Impurity B (CAS 1159977-56-6)
- Ziprasidone-d8 (CAS 1126745-58-1)
- Ziprasidone Impurity 46 (CAS 2369664-19-5)
Recommended Standards
- 2,2'-(4,6-Dichloro-5-methoxy-1,3-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1221589-79-2)
- 4-[3-(4-Chlorobenzenesulfonyl)-4-methyl-6-phenylpyridin-2-yl]morpholine (CAS 478262-72-5)
- 2-Chloro-5,9,9-triphenyl-9H-fluorene (CAS 2356109-78-7)
- (3-(((4-Chlorophenyl)sulfonyl)methyl)-4-(1H-pyrrol-1-yl)phenyl)(pyrrolidin-1-yl)methanone (CAS 339101-88-1)
- Brivaracetam Impurity 155 (CAS 2451181-70-5(free base))
- Mupirocin Impurity 23 (CAS CATO-C4X-170623)
- Tandospirone N-Oxide Impurity 12 HCl (CAS CATO-C4X-187512)
- Salbutamol Impurity 87 (CAS 115787-53-6)
- 4-(4-Chlorophenyl)-2-butanone (CAS 3506-75-0)
- 1,7-Dimethylchrysene (CAS 15914-24-6)
- 2-methyl-2-(methylamino)-1-phenyl-propan-1-ol (CAS 10079-55-7)
- cis-13-Eicosenoic Acid (CAS 17735-94-3)
- 1(2H)-Pyridinecarboxylic acid, 3,6-dihydro-3-(hydroxymethyl)-, 1,1-dimethylethyl ester (CAS 215725-60-3)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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