Thioridazine EP Impurity D CAS 53926-89-9
| CAS No. | 53926-89-9 |
| Molecular Formula | C21H26N2O2S2 |
| Molecular Weight | 402.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Thioridazine EP Impurity D (C21H26N2O2S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Thioridazine EP Impurity D (CAS 53926-89-9), molecular formula C21H26N2O2S2 and molecular weight 402.57 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C21H26N2O2S2 |
| Molecular Weight | 402.57 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Thioridazine Standards
- Thioridazine EP Impurity E (CAS 14759-06-9)
- Thioridazine EP Impurity C-d3 (CAS 1330076-56-6)
- Thioridazine EP Impurity B (CAS 5588-33-0)
- Thioridazine EP Impurity C (CAS 7776-05-8)
- Thioridazine EP Impurity A (CAS 100574-22-9)
- Thioridazine (CAS 50-52-2)
- Thioridazine Hydrochloride - Impurity F (CAS 10538-32-6)
- Thioridazine EP Impurity F (CAS 13002-81-8)
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