4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl 4-bromobenzene-1-sulfonate CAS 338416-31-2
| CAS No. | 338416-31-2 |
| Molecular Formula | C19H12BrClF3NO3S |
| Molecular Weight | 506.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl 4-bromobenzene-1-sulfonate 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.
4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl 4-bromobenzene-1-sulfonate (CAS 338416-31-2), molecular formula C19H12BrClF3NO3S and molecular weight 506.72 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl 4-bromobenzene-1-sulfonate (C19H12BrClF3NO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 506.72 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H12BrClF3NO3S |
| Molecular Weight | 506.72 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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