Levomepromazine EP Impurity C HCl CAS 61733-92-4
| CAS No. | 61733-92-4 |
| Molecular Formula | C18H22N2OS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Levomepromazine EP Impurity C HCl 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.
Levomepromazine EP Impurity C HCl (CAS 61733-92-4) is a certified pharmaceutical impurity reference standard with the molecular formula C18H22N2OSHCl and a molecular weight of 350.90 g/mol.
The molecular framework of Levomepromazine EP Impurity C HCl (C18H22N2OSHCl) 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 its high hydrophobicity (logP), 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).
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.
Physical & Chemical Properties
| Molecular Formula | C18H22N2OS HCl |
| Molecular Weight | 350.90 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Levomepromazine Standards
- rac-Levomepromazine EP Impurity B (rac-Levomepromazine S-Oxide) (CAS 1188265-45-3)
- Levomepromazine Hydrochloride (CAS 1236-99-3)
- Levomepromazine EP Impurity A (CAS 1771-18-2)
- Levomepromazine (CAS 60-99-1)
- Levomepromazine Sulphone Hydrochloride (CAS 60119-90-6)
- Levomepromazine maleate CRS (CAS 7104-38-3)
- Levomepromazine Maleate EP Impurity B (CAS 7606-29-3)
- (±)-Levomepromazine (CAS 851-68-3)
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