(2-(Ethylthio)-5-(trifluoromethyl)pyridin-3-yl)boronic acid CAS 1256345-55-7
| CAS No. | 1256345-55-7 |
| Molecular Formula | C8H9BF3NO2S |
| Molecular Weight | 251.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2-(Ethylthio)-5-(trifluoromethyl)pyridin-3-yl)boronic acid (C8H9BF3NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
(2-(Ethylthio)-5-(trifluoromethyl)pyridin-3-yl)boronic acid (CAS 1256345-55-7) is a high-purity analytical reference standard with the molecular formula C8H9BF3NO2S and a molecular weight of 251.03 g/mol.
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 | C8H9BF3NO2S |
| Molecular Weight | 251.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethylthio Standards
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- 2-(2-(Ethylthio)pyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352504-10-9)
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Recommended Standards
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- 2-chloro-4-(trifluoromethyl)pyrimidine-5-carbonyl chloride (CAS 154934-99-3)
- 6,7-Dimethoxyisoquinolin-4-amine (CAS 66675-71-6)
- 3-Chloro-5-iodobenzoic Acid (CAS 289039-25-4)
- 2-{[6-benzyl-3-cyano-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}-N-(propan-2-yl)acetamide (CAS 723748-31-0)
- 2-Amino-N-(((S)-1-benzylpiperidin-2-yl)methyl)-N-cyclopropyl-3-methylbutanamide (CAS 1354024-73-9)
- 2-Bromoestrone (CAS 95125-87-4)
- (2-Methoxypyridin-4-yl)methanol (CAS 123148-66-3)
- 3-(2-Methyl-5-nitrophenyl)oxazolidin-2-one (CAS 1172621-13-4)
- (6-Methyl-3-(methylthio)-5-oxo-1,2,4-triazin-4(5H)-yl)methyl 2-(4-chlorophenoxy)acetate (CAS 877648-41-4)
- 7,7-Dimethyl-2-azaspiro[3.3]Heptan-5-one (CAS 2168211-80-9)
- Neuropeptide AF (human) (CAS 192387-38-5)
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