B9807

1,1,2,2-Tetraphenyl-1,2-ethanediol

99%

• Synonym(s): TPED, Benzopinacol
• Linear Formula: (C₆H₅)₂C(OH)C(C₆H₅)₂OH
• CAS Number: 464-72-2
• Molecular Weight: 366.45
• Beilstein/REAXYS Number: 2061947
• EC Number: 207-356-8
• MDL number: MFCD00004448
• UNSPSC Code: 12352100
• PubChem Substance ID: 24892159
• NACRES: NA.22

Properties

• assay: 99%
• form: crystals
• mp: 171-173 °C (lit.)
• SMILES string: OC(c1ccccc1)(c2ccccc2)C(O)(c3ccccc3)c4ccccc4
• InChI: 1S/C26H22O2/c27-25(21-13-5-1-6-14-21,22-15-7-2-8-16-22)26(28,23-17-9-3-10-18-23)24-19-11-4-12-20-24/h1-20,27-28H
• InChI key: MFEWNFVBWPABCX-UHFFFAOYSA-N

Description

Application

• 1,1,2,2-Tetraphenyl-1,2-ethanediol (TPED) is used as an active component of the initiation system in free radical polymerization.
• It is used as a precursor to prepare 1-hydroxy-2-(p-tolylaminocarbonyloxy)-1,1,2,2-tetraphenylethane (HTTPE), a thermal iniferter for radical polymerization.
• TPED can also be used as a protecting group for the boronic acids by converting them to stable boronic esters.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)