hatomarubigin A Hatomarubigine A 3,4-Dihydro-3-methyl-8-methoxy-6-hydroxybenz[a]anthracene-1,7,12(2H)-trione 3-Methyl-6-hydroxy-8-methoxy-3,4-dihydrobenzo[a]anthracene-1,7,12(2H)-trione 3,4-Dihydro-3-methyl-6-hydroxy-8-methoxybenzo[a]anthracene-1,7,12(2H)-trione