IUPAC:[10,14-bis(3,4-dihydroxyphenyl)-6,18,19-trihydroxy-12-[2-(4-hydroxyphenyl)ethyl]-9,15-dioxo-12-azapentacyclo[11.8.0.0^{2,11}.0^{3,8}.0^{16,21}]henicosa-1,3,5,7,10,13,16,18,20-nonaen-5-yl]oxidanesulfonic acid
IUPAC:[10,14-bis(3,4-dihydroxyphenyl)-6,18,19-trihydroxy-12-[2-(4-hydroxyphenyl)ethyl]-9,15-dioxo-12-azapentacyclo[11.8.0.0^{2,11}.0^{3,8}.0^{16,21}]henicosa-1,3,5,7,10,13,16,18,20-nonaen-5-yl]oxidanesulfonic acid