| CAS No. | 919119-75-8 |
| Molecular Formula | C20H28B2O5 |
| Molecular Weight | 370.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
2,2'-(Benzofuran-2,6-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 919119-75-8), molecular formula C20H28B2O5 and molecular weight 370.06 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,2'-(Benzofuran-2,6-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (C20H28B2O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 370.06 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2,2'-(Benzofuran-2,6-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 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.
| Molecular Formula | C20H28B2O5 |
| Molecular Weight | 370.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |