74813-16-4Relevant articles and documents
Syntheses of fluorescent dyes. IX. New 4-hydroxycoumarins, 4-hydroxy-2-quinolones, 2H,5H-pyrano[3,2-c]benzopyran-2,5-diones and 2H,5H-pyrano[3,2-c]quinoline-2,5-diones
Knierzinger,Wolfbeis
, p. 225 - 229 (1980)
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