COUMARIN is validvalid

a chemical compound [n COUMARINS] : COUMARIC [adj]

63,231 of 196,601 in NWL2023·also valid in CSW24

(Tupi) a crystalline compound obtained from Tonka beans, woodruff, melilot, etc. used medicinally to prevent coagulation of the blood, also CUMARIN [n -S]