Burns, Doane, Swecker & Mathis
4-carbonyl-substituted coumarin compound
 A novel 4-carbonyl-substituted coumarin compound which is substituted with a carbonyl group in the position-4 of a 7-alkylaminocoumarin derivative and has photosensitivity in the visible region. 
Mitsui Toatsu Chemicals, Inc.
C C C C G
C07D C07D C07D C07D G03F
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Kazuhiko Yoriaki Keisuke Susumu Tsukasa Kimitoshi
Murayama Matsuzaki Takuma Kasamatsu Ohyama Kato