Origin of coumarin
Examples from the Web for coumarin
If coumarin is present, a brown, precipitate will form, and if stirred with a rod it will collect in dark green flecks.
Coumarin, an extract from tonka beans, may be used in making the extract.
Good hay should come out green and with the odour of coumarin—to which is due the scent of new-mown hay.
These researches incidentally solved the constitution of coumarin, the odoriferous principle of woodruff.