Chemical Name: 4-(Acetyloxy)-5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid (as per EP)
Synonym: monoacetyl rhein isomer B (EP) ; 4-Acetyl Rhein
Smiles: OC1=CC=CC2=C1C(C(C(OC(C)=O)=CC(C(O)=O)=C3)=C3C2=O)=O
Inchi: InChI=1S/C17H10O7/c1-7(18)24-12-4-2-3-9-14(12)16(21)13-10(15(9)20)5-8(17(22)23)6-11(13)19/h2-6,19H,1H3,(H,22,23)