(E)-3-{[(Dimethoxythiophosphoryl)methyl-hydrazono]methyl}-4H-1-benzopyran-4-one, a new chromone derivative substituted with phosphorohydrazide at position 3.

The article focuses on the crystallization of the compound (E)-3-{[(Dimethoxythiophosphoryl)methyl-hydrazono]methyl}-4H-1-benzopyran-4-one. It is a new chromone derivative substituted with phosphorohydrazide at position 3. The molecule of the compound consists of a benzopyran moiety and has two planar groups, benzopyran and methylhydrazone. The compound was formed by the reaction of equimolar amounts of 4-oxo-4H-benzopyran-3-carbaldehyde and N' -dimethoxyphosphonate- N' -methylhydrazide in methanol.