Synonyms: Kuwanon M;85802-38-6;AC1NULGP;[3,4-h]chromen-4-one;2-(2,4-dihydroxyphenyl)-8-[2-(2,4-dihydroxyphenyl)-5,7-dihydroxy-3-(3-methylbut-2-enyl)-4-oxochromen-8-yl]-5-hydroxy-9,9,11-trimethyl-3-(3-methylbut-2-enyl)-8,8a,10,12a-tetrahydroisochromeno[3,4-h]chromen-4-one;8-(3-((2E)-3-Methylbut-2-enyl)-2-(2,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-8-yl)-3-((2Z)-3-methylbut-2-enyl)-2-(2,4-dihydroxyphenyl)-5-hydroxy-9,9,11-trimethyl-9,10,12a,8a-tetrahydroisochromano(3,4-h)chromen-4-one;8-[3-((2E)-3-Methylbut-2-enyl)-2-(2,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-8-yl]-3-((2Z)-3-methylbut-2-enyl)-2-(2,4-dihydroxyphenyl)-5-hydroxy-9,9,11-trimethyl-9,10,12a,8a-tetrahydroisochromano