"Chromene" . . . "Benzopyran" . "Compounds with a core of fused benzo-pyran rings" . "D\u00E9riv\u00E9s de benzopyrane" . "Chromenes" . "D03.383.663.283" . "Chrom\u00E8nes" . "Benzopyrans" . "D03.633.100.150" . "Benzopyranes"@fr . "D\u00E9riv\u00E9s du benzopyrane" . .