Quetiapine CAS 111974-69-7
| CAS No. | 111974-69-7 |
| Molecular Formula | C21H25N3O2S |
| Molecular Weight | 383.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 383.51 g/mol gives Quetiapine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Quetiapine (CAS 111974-69-7) is a high-purity analytical reference standard with the molecular formula C21H25N3O2S and a molecular weight of 383.51 g/mol.
Based on its molecular formula C21H25N3O2S, Quetiapine contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 383.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Quetiapine 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 | C21H25N3O2S |
| Molecular Weight | 383.51 g/mol |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Quetiapine Standards
- Quetiapine EP Impurity S (CAS 329216-63-9)
- Quetiapine EP Impurity H (CAS 1076199-40-0)
- Quetiapine Impurity 4 (CAS 1241800-24-7)
- Quetiapine EP Impurity F (CAS 848814-27-7)
- Quetiapine Impurity N2 (CAS 2206135-50-2)
- Quetiapine Impurity 35 (CAS 329216-65-1)
- Quetiapine Impurity 51 (CAS 1185170-04-0)
- Quetiapine Fumarate EP Impurity V (CAS 2204369-14-0)
Recommended Standards
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- 1-Fluoro-4-(2-isocyanoethyl)benzene (CAS 244221-04-3)
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