3-PHENYL-7-(4-(TETRAHYDROFURFURYLOXY)PHENYL)-1,5-DIOXA-S-INDACENE-2,6-DIONE

摘要

PURPOSE:To provide a compound with which a hydrophobic fibrous material, especially a fibrous polyester material, can be densely dyed in a bright red. CONSTITUTION:The title compound has a crystal structure whose Cu-Kalpha X-ray diffraction spectrum has a peak at a diffraction angle (2theta) of 4.7 deg., which peak is the highest in the range of 2theta>=3 deg.. Applying this compound to a hydrophobic fibrous material gives a dyed material having a dense bright hue and is excellent in various fastness properties.