| CAS No. | 344263-20-3 |
| Molecular Formula | C18H11ClF3N3OS |
| Molecular Weight | 409.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 409.81 g/mol gives 2-({5-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]pyrimidin-2-yl}sulfanyl)-1-phenylethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-({5-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]pyrimidin-2-yl}sulfanyl)-1-phenylethan-1-one (CAS 344263-20-3) is a high-purity analytical reference standard with the molecular formula C18H11ClF3N3OS and a molecular weight of 409.81 g/mol.
Structurally, 2-({5-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]pyrimidin-2-yl}sulfanyl)-1-phenylethan-1-one (C18H11ClF3N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 409.81 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).
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.
| Molecular Formula | C18H11ClF3N3OS |
| Molecular Weight | 409.81 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |