The molecule is a trihydroxyanthraquinone that is that is 3,6,8-trihydroxy-9,10-anthraquinone substituted by methyl and carboxy groups at positions 1 and 2 respectively. A minor component of LAC dye together with laccaic acids A, B and C. It has a role as a dye and an animal metabolite. It is a monocarboxylic acid, a polyphenol and a trihydroxyanthraquinone. It is a conjugate acid of a laccaic acid D(1-).
3,6,8-trihydroxy-1-methyl-9,10-dioxoanthracene-2-carboxylic acid