Synonyms: Amarogentin(6CI,8CI); [1,1'-Biphenyl]-2-carboxylic acid, 3,3',5-trihydroxy-, 2-ester with5-ethenyl-6-(b-D-glucopyranosyloxy)-4,4a,5,6-tetrahydro-1H,3H-pyrano[3,4-c]pyran-1-one,[4aS-(4aa,5b,6a)]-; 1H,3H-Pyrano[3,4-c]pyran, [1,1'-biphenyl]-2-carboxylic acid deriv.;1H,3H-Pyrano[3,4-c]pyran-1-one,5-ethenyl-4,4a,5,6-tetrahydro-6-[[2-O-[(3,3',5-trihydroxy[1,1'-biphenyl]-2-yl)carbonyl]-b-D-glucopyranosyl]oxy]-, [4aS-(4aa,5b,6a)]-