4-Benzyloxy-5-chloro-2-fluorophenylboronic acid pinacol ester CAS 2121514-89-2
| CAS No. | 2121514-89-2 |
| Molecular Formula | C19H21BClFO3 |
| Molecular Weight | 362.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Benzyloxy-5-chloro-2-fluorophenylboronic acid pinacol ester (CAS 2121514-89-2) is a high-purity analytical reference standard with the molecular formula C19H21BClFO3 and a molecular weight of 362.63 g/mol.
Owing to a steroid core, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 4-Benzyloxy-5-chloro-2-fluorophenylboronic acid pinacol ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 362.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4-Benzyloxy-5-chloro-2-fluorophenylboronic acid pinacol ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H21BClFO3 |
| Molecular Weight | 362.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F/Cl-containing |
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