IUPAC:(9R,10R)-8,8-dimethyl-10-{[(2Z)-2-methylbut-2-enoyl]oxy}-2-oxo-2H,8H,9H,10H-pyrano[2,3-h]chromen-9-yl (2Z)-2-methylbut-2-enoate
IUPAC:(9R,10R)-8,8-dimethyl-10-{[(2Z)-2-methylbut-2-enoyl]oxy}-2-oxo-2H,8H,9H,10H-pyrano[2,3-h]chromen-9-yl (2Z)-2-methylbut-2-enoate