5-Bromo-3-iodopyridin-2-yl trifluoromethanesulfonate CAS 1261365-85-8
| CAS No. | 1261365-85-8 |
| Molecular Formula | C6H2BrF3INO3S |
| Molecular Weight | 431.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-3-iodopyridin-2-yl trifluoromethanesulfonate.
5-Bromo-3-iodopyridin-2-yl trifluoromethanesulfonate (CAS 1261365-85-8), molecular formula C6H2BrF3INO3S and molecular weight 431.95 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine/iodine substitution, an aromatic ring system, 5-Bromo-3-iodopyridin-2-yl trifluoromethanesulfonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 431.95 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C6H2BrF3INO3S |
| Molecular Weight | 431.95 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br/I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- (R)-7,8,9,10-Tetrahydro-5H,6aH-pyrido[1,2-a]quinoxalin-6-one (CAS 1427203-54-0)
- Ethyl 3-iodonaphthalene-2-carboxylate (CAS 1071583-34-0)
- 2-(2-Amino-5-fluoro-4-iodophenoxy)ethan-1-ol (CAS 1468921-05-2)
- 1H,2H,3H,4H-benzo[h]isoquinoline (CAS 109220-61-3)
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