Word: coumarin
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Dates: during 1940-1949
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...made his discovery when cattlemen in North Dakota and Canada complained that some of their stock died from bleeding scratches and bumps, like human hemophiliacs. He found the guilty chemical in spoiled sweet-clover hay, named it Dicumarol because it is formed from the harmless chemical, coumarin, which gives fresh clover its smell. The cows' problem was solved by planting clover with a low coumarin content...
...From dark, cheap, undesirable tobacco leaves William Turner and Gabriel Goldstein of Columbia University inexpensively removed the desirable tobacco fragrance. This can then be put into the mild, golden leaves with little fragrance now favored by tobacco buyers. Mild leaves now require a factory flavoring of coumarin (from sweet clover) and vanillin. The two chemists predict that cigarets will soon have a genuine tobacco flavor-provided the public likes them that...