coumarin

• coumarine

From coumarou (“tonka bean, Dipteryx odorata (syn. Coumarouna odorata)”) +‎ -in, or from French coumarine.

• (US) IPA^(key): /ˈkuːməɹɪn/

• Audio (Southern England):

  (file)

coumarin (countable and uncountable, plural coumarins)

1. (organic chemistry) The bicyclic aromatic compound 1,2-benzopyrone or any of its derivatives.
   • 2015 July 6, “Hydrogen Peroxide Scavenging Activity of Novel Coumarins Synthesized Using Different Approaches”, in PLOS ONE‎^[1], →DOI:

     The postulated mechanism for the reaction of coumarin 4 as an antioxidant, as indicated in Fig 3, relies on the mercapto hydrogen atom (bold), which is under the influence of resonance and inductive effects.

   • 2022, Elise Vernon Pearlstine, Scent: A Natural History of Fragrance, Yale University Press, →ISBN, page 217:

     Coumarin's spicy, balsamic, and sweet vanilla scent is valued by perfume and flavor industries, but it may also add a hint of tobacco to a perfume blend or enhance lavender in a scent.

• fougère

• conarium