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A white or yellowish crystalline powder derived from benzaldehyde. Benzoin is used in organic synthesis.

Note: Pure benzoin is not the same as benzoin resin.

Synonyms and Related Terms

bitter almond oil camphor; benzoylphenyl carbinol; 2-hydroxy-2-phenylacetophenone; phenylbenzoylcarbinol

Chemical structure


Other Properties

Soluble in acetone, hot ethanol. Slightly soluble in water, ether.

Composition C6H5CH2OCOC6H5
CAS 119-53-9
Melting Point 137
Density 1.310
Molecular Weight mol. wt. = 212.2
Boiling Point 344

Hazards and Safety

Combustible. Highly toxic.

LINK: International Chemical Safety Card

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1124
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998