Haloperidol Impurity 33 CAS CATO-C4X-146133
| CAS No. | CATO-C4X-146133 |
| Molecular Formula | C17H18ClNO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Haloperidol Impurity 33 (CAS CATO-C4X-146133), a pharmacopoeial impurity reference standard (molecular formula C17H18ClNOHCl, MW 324.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Haloperidol Impurity 33 (C17H18ClNOHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 324.25 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).
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 | C17H18ClNO HCl |
| Molecular Weight | 324.25 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Haloperidol Standards
- Haloperidol Impurity 10 (CAS 100442-88-4)
- Haloperidol Decanoate EP Impurity H (CAS 1134807-34-3)
- Haloperidol-d4 (CAS 1189986-59-1)
- Haloperidol impurity 02 (CAS 121751-79-9)
- Haloperidol impurity 40 (CAS 1253910-15-4)
- Haloperidol pyridinium Chloride Impurity (CAS 125785-69-5)
- Haloperidol EP Impurity B (CAS 1391052-53-1)
- Haloperidol EP Impurity F (CAS 1391052-67-7)
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