(7-cyanobenzo[b]thiophen-2-yl)boronic acid CAS 1119899-37-4
| CAS No. | 1119899-37-4 |
| Molecular Formula | C9H14BNO2S |
| Molecular Weight | 211.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 211.09 g/mol gives (7-cyanobenzo[b]thiophen-2-yl)boronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (7-cyanobenzo[b]thiophen-2-yl)boronic acid (CAS 1119899-37-4), a certified reference material (molecular formula C9H14BNO2S, MW 211.09 g/mol) for analytical method development and quality control.
(7-cyanobenzo[b]thiophen-2-yl)boronic acid (C9H14BNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H14BNO2S |
| Molecular Weight | 211.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related cyanobenzo Standards
- (5-cyanobenzo[b]thiophen-2-yl)boronic acid (CAS 1142946-81-3)
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Recommended Standards
- Thiazole-5-boronic Acid Pinacol Ester (CAS 1086111-09-2)
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- Sodium Metabisulfite (CAS 7681-57-4)
- Azetidin-1-yl(3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanone (CAS 2434717-24-3)
- 4-Methyl-N-[2-(phenethyloxy)benzyl]aniline (CAS 1040689-10-8)
- 1,1,1,3-Tetrachlorotetrafluoropropane (CAS 2268-46-4)
- 2-(Azetidin-3-yl)butan-1-ol (CAS 1782897-09-9)
- 3-Chloro-4-(1h-imidazol-1-yl)aniline (CAS 869942-76-7)
- 3-Iodo-1-(3,3,3-trifluoropropyl)-1H-pyrazole (CAS 1506585-16-5)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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