caption death_date image_size nationality field work_institutions birth_date known_for prizes image article_title name
karl august folkers 7 december 1997 200px american biochemistry merck 1 september 1906 vitamin b-12 acs medal -lrb- 1960 -rrb- welch award -lrb- 1972 -rrb- priestley award medal -lrb- 1986 -rrb- national medal of science -lrb- 1990 in -rrb- pure chemistry -lrb- 1941 -rrb- perkin karl_august_folkers . jpg karl august folkers
 karl august folkers
karl august folkers

karl august folkers -lrb- september 1 , 1906 -- december 7 , 1997 -rrb- was an american biochemist who made major contributions to the isolation and identification of bioactive natural products .
