Risperidone Impurity 32 CAS 108855-18-1
| CAS No. | 108855-18-1 |
| Molecular Formula | C23H23FN4O2 |
| Molecular Weight | 406.45 g/mol |
| 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.
As a process- or degradation-related impurity, Risperidone Impurity 32 (CAS 108855-18-1, C23H23FN4O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C23H23FN4O2, Risperidone Impurity 32 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), Risperidone Impurity 32 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 | C23H23FN4O2 |
| Molecular Weight | 406.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Risperidone Standards
- Risperidone impurity 46 (CAS 106266-11-9)
- Risperidone EP Impurity D (CAS 1199589-74-6)
- Risperidone Impurity 27 (CAS 1005191-81-0)
- Risperidone Impurity 42 (CAS CATO-C4X-111142)
- Risperidone Impurity (CAS CATO-C4X-111144)
- Risperidone Impurity (CAS CATO-C4X-111145)
- Risperidone (CAS 106266-06-2)
- Risperidone USP Related Compound G (CAS 152542-00-2)
Recommended Standards
- Tos-PEG4-CH2COOH (CAS 2028284-73-1)
- 3-(3,5-Dimethoxyphenyl)-5-(((6-phenylpyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1111260-28-6)
- Penamecillin (CAS 983-85-7)
- 5-Methyl-N-(3-oxo-3-(pyridin-2-ylamino)propyl)-4-(pyrrolidin-1-ylsulfonyl)furan-2-carboxamide (CAS 1211665-68-7)
- Dydrogesterone Impurity 23 (CAS CATO-C4X-218323)
- Crisaborole Impurity 23 (CAS CATO-C4X-202123)
- Oxybuprocaine Impurity 1 (CAS CATO-C4X-28331)
- 3-Bromo-1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-2-(((4-chlorophenyl)thio)methyl)-1H-indole (CAS 339110-76-8)
- 3-O-Methyl-6β-Naltrexol (CAS 65150-66-5)
- 4-(Morpholine-4-carboxamido)benzoic acid (CAS 163587-59-5)
- Lasmiditan Impurity 29 (CAS CATO-C4X-247829)
- 5-Chloro-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 101384-60-5)
- 1-(3,4-Dimethylisoxazol-5-yl)guanidine (CAS 884197-54-0)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
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