Ziprasidone Impurity 11 CAS 188797-76-4
| CAS No. | 188797-76-4 |
| Molecular Formula | C21H21ClN4O2S |
| Molecular Weight | 428.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ziprasidone Impurity 11.
Ziprasidone Impurity 11 (CAS 188797-76-4) is a certified pharmaceutical impurity reference standard with the molecular formula C21H21ClN4O2S and a molecular weight of 428.94 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Ziprasidone Impurity 11 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 428.94 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Ziprasidone Impurity 11 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H21ClN4O2S |
| Molecular Weight | 428.94 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.) | 2010 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ziprasidone Standards
- Ziprasidone Impurity 12 (CAS 884305-08-2)
- Ziprasidone Impurity 30 (CAS 188797-80-0)
- 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
- 4-[3-(4-Chlorobenzenesulfonyl)-4-methyl-6-phenylpyridin-2-yl]morpholine (CAS 478262-72-5)
- (3-(((4-Chlorophenyl)sulfonyl)methyl)-4-(1H-pyrrol-1-yl)phenyl)(pyrrolidin-1-yl)methanone (CAS 339101-88-1)
- Capivasertib Impurity 1 (CAS 1143532-51-7)
- 5-Chloro-N-(4-(3-oxopiperazin-1-yl)benzyl)-2-(piperidin-1-yl)pyrimidine-4-carboxamide (CAS 1208800-70-7)
- Revefenacin impurity 30 (CAS 1719-82-0)
- Adrenaline EP Impurity C (CAS 99-45-6)
- Famciclovir Impurity 26 (CAS CATO-C4X-164226)
- Methyl 8-bromo-6-chloro-4-hydroxyquinoline-2-carboxylate (CAS 1133116-01-4)
- 2-(Methylthio)-5-nitrobenzo[d]oxazole (CAS 2851-07-2)
- 3-Mercapto-1,2-diphenylpropan-1-one (CAS 143801-00-7)
- 2-(3,4,5-Trimethoxyphenyl)quinoline-4-carboxylic acid (CAS 302575-69-5)
- 2-(4-Ethylcyclohexyl)-N-methylethan-1-amine (CAS 1344331-96-9)
- 2-(2-Chloroacetyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1009185-81-2)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com