Compounds

Coumarin

Not a resin constituent but the classic partner of benzoin in fougère and amber bases, from tonka bean or synthesis. Declared EU allergen.

· Atlas · Compounds

Coumarin
Rolelactone
FormulaC9H6O2
Molecular weight146.14 g/mol
IUPAC namechromen-2-one
XLogP1.4
PubChem CID323
SafetyEU-listed fragrance allergen.

Scent facets

  • Sweet hay, tonka bean, almond-vanilla.

Also called

  • coumarin
  • 91-64-5
  • 2H-Chromen-2-one
  • 2H-1-Benzopyran-2-one
  • cumarin
  • 1,2-Benzopyrone

Data: PubChem, GBIF (retrieved 2026-09-09); descriptions by Benjuí.