Title: Chalcone
CAS Registry Number: 94-41-7
CAS Name: 1,3-Diphenyl-2-propen-1-one
Additional Names: chalkone; benzylideneacetophenone; benzalacetophenone; phenyl styryl ketone
Molecular Formula: C15H12O
Molecular Weight: 208.26
Percent Composition: C 86.51%, H 5.81%, O 7.68%
Line Formula: C6H5CH=CHCOC6H5
Literature References: Prepd by the action of NaOH on an alcoholic soln of benzaldehyde and acetophenone: E. P. Kohler, H. M. Chadwell, Org. Synth. coll. vol. I, 78 (1941).
Properties: Pale-yellow orthorhombic prisms from petr ether. mp 57-58°. d462 1.0712. bp760 345-348° (slight decompn). bp25 208°. nD62 1.6458. Freely sol in ether, chloroform, carbon bisulfide, benzene; slightly in alcohol; very sparingly in cold petr ether.
Melting point: mp 57-58°
Boiling point: bp760 345-348° (slight decompn); bp25 208°
Index of refraction: nD62 1.6458
Density: d462 1.0712
CAUTION: Skin irritant.
NOTE: Exists in other forms (polymorphic) with different mps. Irradiation produces four forms of dimers.
Chamazulene Chanoclavine Chaperonins Chartreusin Charybdotoxin

CAS number 94-41-7 YesY
614-47-1 ((E)-Chalcone)
PubChem 637760
ChemSpider 6921 YesY
ChEBI CHEBI:27618 YesY
Jmol-3D images Image 1
Molecular formula C15H12O
Molar mass 208.26 g mol−1
Density 1.071 g/cm3
Melting point 55–57 °C
Boiling point 345–348 °C
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Chalcone is an aromatic ketone and an enone that forms the central core for a variety of important biological compounds, which are known collectively as chalcones or chalconoids. Benzylideneacetophenone is the parent member of the chalcone series. The alternative name given to chalcone are phenyl styryl ketone, benzalacetophenone, β-phenylacrylophenone, ɣ-oxo-α,ɣ-diphenyl-α-propylene and α-phenyl-β-benzoylethylene.