IUPAC:2-[(1S,7S,9R,16R,18R,19R)-1,3,14,19-tetrahydroxy-7,18-dimethyl-5,12-dioxo-8,17-dioxapentacyclo[14.2.2.0^{2,15}.0^{4,13}.0^{6,11}]icosa-2(15),3,6(11),13-tetraen-9-yl]acetic acid
IUPAC:2-[(1S,7S,9R,16R,18R,19R)-1,3,14,19-tetrahydroxy-7,18-dimethyl-5,12-dioxo-8,17-dioxapentacyclo[14.2.2.0^{2,15}.0^{4,13}.0^{6,11}]icosa-2(15),3,6(11),13-tetraen-9-yl]acetic acid