Ziprasidone impurity 55 CAS 118305-72-9 (free base)
| CAS No. | 118305-72-9 (free base) |
| Molecular Formula | C21H22N4OS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ziprasidone impurity 55 (CAS 118305-72-9 (free base)) is a certified pharmaceutical impurity reference standard with the molecular formula C21H22N4OSHCl and a molecular weight of 414.95 g/mol.
The molecular framework of Ziprasidone impurity 55 (C21H22N4OSHCl) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures Ziprasidone impurity 55 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 | C21H22N4OS HCl |
| Molecular Weight | 414.95 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| 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 21 (CAS 118306-76-6)
Recommended Standards
- Sorafenib Impurity 14 (CAS 845306-04-9)
- Trandolapril Impurity 14 (CAS CATO-C4X-177014)
- Butylphthalide Impurity 47 (CAS 380905-48-6)
- 4-(3-(4,6-Dimethylpyrimidin-2-yl)guanidino)benzoic acid (CAS 354994-01-7)
- Disulfiram Impurity 2 (CAS 145195-14-8)
- (2-methylprop-2-en-1-yl)cyclopropane (CAS 58584-22-8)
- 4-Amino-5-(2,4-dichlorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 93677-89-5)
- 4-Amino-1,2,5-thiadiazole-3-carbohydrazide (CAS 6972-14-1)
- 4-Chloro-3-nitrobenzaldehyde (CAS 16588-34-4)
- Osteoblast Activating Peptide (mouse, rat) (H-7262.0500) (CAS 1222950-80-2)
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