1-(1-(Difluoroboryl)oxy-3H-benzo[f]chromen-2-yl)-ethanone inner complex CAS 119634-42-3
| CAS No. | 119634-42-3 |
| Molecular Formula | C15H11BF2O3 |
| Molecular Weight | 288.05 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 1-(1-(Difluoroboryl)oxy-3H-benzo[f]chromen-2-yl)-ethanone inner complex.
1-(1-(Difluoroboryl)oxy-3H-benzo[f]chromen-2-yl)-ethanone inner complex (CAS 119634-42-3), molecular formula C15H11BF2O3 and molecular weight 288.05 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(1-(Difluoroboryl)oxy-3H-benzo[f]chromen-2-yl)-ethanone inner complex (C15H11BF2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.5, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 288.05 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C15H11BF2O3 |
| Molecular Weight | 288.05 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, keep tightly closed to prevent evaporation |
| 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
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