Paliperidone Impurity 25 CAS CATO-C4X-172425
| CAS No. | CATO-C4X-172425 |
| Molecular Formula | C18H16Cl2N2O2 |
| Molecular Weight | 363.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Paliperidone Impurity 25 (CAS CATO-C4X-172425), a pharmacopoeial impurity reference standard (molecular formula C18H16Cl2N2O2, MW 363.24 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Paliperidone Impurity 25 (C18H16Cl2N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 363.24 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), Paliperidone Impurity 25 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 | C18H16Cl2N2O2 |
| Molecular Weight | 363.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Paliperidone Standards
- Paliperidone Impurity 94 (CAS CATO-C4X-172494)
- Paliperidone Impurity 92 (CAS CATO-C4X-172492)
- Paliperidone Impurity J (CAS 2379324-96-4)
- Paliperidone Impurity 72 (CAS CATO-C4X-172472)
- Paliperidone Impurity 4 (CAS CATO-C4X-17244)
- Paliperidone Impurity 24 (CAS 147687-17-0)
- Paliperidone Impurity 70 (CAS CATO-C4X-172470)
- Paliperidone Impurity 148 (CAS CATO-C4X-1724148)
Recommended Standards
- N-(3,4-dichlorobenzyl)-4-(2-oxopyrrolidin-1-yl)benzamide (CAS 478039-61-1)
- Florfenicol-d5 (CAS CATO-C4X-207515)
- n-(2-(1h-Indol-3-yl)ethyl)-2-(2,4-dichlorophenoxy)acetamide (CAS 819807-03-9)
- Anagrelide Impurity 30 (CAS CATO-C4X-224030)
- Opicapone Impurity 8 (CAS CATO-C4X-24048)
- Deferasirox Impurity 9 (CAS 1266741-05-2)
- Crisaborole lmpurity 89 (CAS 1187187-13-8)
- (3-Cyclopropyl-5-isobutylphenyl)boronic acid (CAS 2225169-44-6)
- 1797891-10-1 3-(Chloromethyl)-4-hydroxyquinoline Hydrochloride (CAS 1797891-10-1)
- Norfloxacin Impurity 51 (CAS CATO-C4X-146851)
- 2-(Benzyloxy)-5-isopropylbenzoic acid (CAS 1285515-85-6)
- Ethyl 2-(3-cyclopropyl-4-(difluoromethyl)-6-(1-methyl-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-b]pyridin-1-yl)acetate (CAS 1172010-69-3)
- (R)-Benzyl (3,8,8,9,9-pentamethyl-4-oxo-2,7-dioxa-3-aza-8-siladecan-5-yl)carbamate (CAS 160349-51-9)
- Semaglutide impurity 50 (CAS 2773558-66-8)
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