2,2,7,7-Tetra([1,1'-biphenyl]-4-yl)-2,7-dihydro-9,9'-spirobi[fluorene] CAS 171408-93-8

Description

As a certified reference material (CRM), 2,2,7,7-Tetra([1,1'-biphenyl]-4-yl)-2,7-dihydro-9,9'-spirobi[fluorene] 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.

2,2,7,7-Tetra([1,1'-biphenyl]-4-yl)-2,7-dihydro-9,9'-spirobi[fluorene] (CAS 171408-93-8) is a high-purity analytical reference standard with the molecular formula C73H48 and a molecular weight of 925.16 g/mol.

Owing to a polycyclic aromatic system, 2,2,7,7-Tetra([1,1'-biphenyl]-4-yl)-2,7-dihydro-9,9'-spirobi[fluorene] is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 925.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

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