3-(t-Butyldimethylsilyloxy)-4-chloro-2-fluorophenylboronic acid CAS 1256354-94-5
| CAS No. | 1256354-94-5 |
| Molecular Formula | C12H19BClFO3Si |
| Molecular Weight | 304.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(t-Butyldimethylsilyloxy)-4-chloro-2-fluorophenylboronic acid 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.
3-(t-Butyldimethylsilyloxy)-4-chloro-2-fluorophenylboronic acid (CAS 1256354-94-5), molecular formula C12H19BClFO3Si and molecular weight 304.63 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H19BClFO3Si, 3-(t-Butyldimethylsilyloxy)-4-chloro-2-fluorophenylboronic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 304.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C12H19BClFO3Si |
| Molecular Weight | 304.63 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
Related t Standards
- 4-(tert-Butyldimethylsilyloxy)-3-chloro-2-fluorophenylboronic acid (CAS 2377608-26-7)
- 2-((tert-Butyldimethylsilyloxy)methyl)-6-chlorofuro[3,2-b]pyridine (CAS 1171920-42-5)
- 4-tert-Butyldimethylsilyloxy-6-fluoro-2-formyl-3,4-dihydro-2H-1-benzopyran (CAS 1286400-05-2)
- 4-[2-(tert-Butyldimethylsilyloxy)ethyl]-3-fluorophenylboronic acid (CAS 2377606-02-3)
- 1286156-10-2 4-tert-Butyldimethylsilyloxy-6-fluoro-2-hydroxymethyl-3,4-dihydro-2H-1-benzopyran (Mixture of Diastereomers) (CAS 1286156-10-2)
- 2-((tert-Butyldimethylsilyloxy)methyl)furo[3,2-b]pyridine-6-carboxylic acid (CAS 1171920-49-2)
- 2-(t-Butyldimethylsilyloxy)-4-bromoanisole (CAS 177329-71-4)
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Recommended Standards
- 2,2,3,3,9,9,10,10-Octamethyl-4,8-dioxa-3,9-disilaundecane (CAS 82112-22-9)
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- (2S)-2-amino-3-[4-(Hydroxymethyl)phenyl]propanoic acid (CAS 15742-88-8)
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