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CAS No 464-72-2 , 1,1,2,2-tetraphenylethane-1,2-diol

  • Name: 1,1,2,2-tetraphenylethane-1,2-diol
  • Synonyms: Benzopinacone; Benzpinacone; Benzpinacol;1,1,2,2-tetraphenylethane-1,2-diol; Tetraphenylethylene glycol; 1,1,2,2-Tetraphenylethane-1,2-diol;Benzopinacole; 464-72-2;
  • CAS Registry Number:
  • Melting Point: 184-186 ºC
  • Density: 1.198 g/cm3
  • Refractive index: 1.648
  • Safety Statements: 22-24/25
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29062900
  • EINECS: 207-356-8
  • Molecular Weight: 366.45168
  • InchiKey: MFEWNFVBWPABCX-UHFFFAOYSA-N
  • InChI: 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
  • Risk Statements: S22;S24/25
  • Molecular Formula: C26H22O2
  • Molecular Structure:CAS No:464-72-2 1,1,2,2-tetraphenylethane-1,2-diol

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References of 1,1,2,2-tetraphenylethane-1,2-diol
Title: Benzopinacol
CAS Registry Number: 464-72-2
CAS Name: 1,1,2,2-Tetraphenyl-1,2-ethanediol
Synonyms: benzpinacone; tetraphenylethylene glycol
Molecular Formula: C26H22O2
Molecular Weight: 366.45
Percent Composition: C 85.22%, H 6.05%, O 8.73%
Line Formula: (C6H5)2C(OH)C(OH)(C6H5)2
Literature References: Prepd by photochemical reduction of benzophenone: Bachmann, Org. Synth. coll. vol. II, 71 (1943); L. F. Fieser, Organic Experiments (D. C. Heath & Co., Boston, 1964) p 203. By the action of phenylmagnesium bromide on benzil: Acree, Ber. 37, 2761 (1904).
Properties: Monoclinic prisms, may contain 1 mol C6H6 when crystallized from benzene. mp 197° (open capillary, rapid heating); mp 222° (copper block). On heating to mp it dec to benzophenone and benzohydrol. Soluble in 11.5 parts boiling glacial acetic acid; in 26 parts boiling benzene; in 39 parts boiling 95% alcohol. Freely sol in ether, carbon bisulfide, chloroform.
Melting point: mp 197° (open capillary, rapid heating); mp 222° (copper block)