(E)-1-(2-Hydroxyphenyl)-3-(2,4,5-trimethoxyphenyl)prop-2-en-1-one

(E)-1-(2-Hydroxyphenyl)-3-(2,4,5-trimethoxyphenyl)prop-2-en-1-one

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In the title chalcone derivative, C18H18O5, the dihedral angle between the hydroxy-substituted benzene ring and the trimethoxy-substituted benzene ring is 16.3 (1)°.The three methoxy groups are essentially coplanar with the Western Irons benzene ring to which they are attached, with an r.

m.s.deviation of 0.

0208 Å.An intramolecular O—H.O hydrogen bond generates an S(6) ring motif.

In the crystal, weak C—H.O interactions link molecules into helical chains along the b axis.These chains are connected into sheets parallel to the Booster Seat bc plane by further weak C—H.

O interactions.