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  1. Coumarine: La coumarine est une substance naturelle organique aromatique. Sa formule chimique est C9H6O2. [100%] 2025-02-22
  2. Coumarin: Coumarin, C9H6O2, a substance which occurs naturally in sweet woodruff (Asperula odorata), in the tonka bean and in yellow melilot (Melilotus officinalis). It can be obtained from the tonka bean by extraction with alcohol. It is prepared artificially by heating ... [96%] 2022-09-02
  3. Coumarin: Coumarin (/ˈkuːmərɪn/) or 2H-chromen-2-one is an aromatic organic chemical compound with formula C9H6O2. Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by an unsaturated lactone ring −(CH)=(CH)−(C=O ... (Aromatic chemical compound) [96%] 2025-06-10 [Coumarins] [Fluorescent dyes]...
  4. Chemins de fer roumains: Vous lisez un « article de qualité » labellisé en 2007. Pour les articles homonymes, voir CFR. [48%] 2024-04-10

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