5-[13-(3-carboxy-4-hydroxyphenyl)-5,7,12,14-tetraoxo-6,13-diazatetracyclo[6.6.2.0⁴,¹⁶.0¹¹,¹⁵]hexadeca-1,3,8(16),9,11(15)-pentaen-6-yl]-2-hydroxybenzoic acid

5-[13-(3-carboxy-4-hydroxyphenyl)-5,7,12,14-tetraoxo-6,13-diazatetracyclo[6.6.2.0⁴,¹⁶.0¹¹,¹⁵]hexadeca-1,3,8(16),9,11(15)-pentaen-6-yl]-2-hydroxybenzoic acid