What is 1,8-Dihydroxy-3-methoxy-6-methyl-9,10-anthraquinone (CAS: 521-61-9)?

1,8-Dihydroxy-3-methoxy-6-methyl-9,10-anthraquinone (CAS: 521-61-9) is a complex organic compound belonging to the anthraquinone family. Its chemical formula is C16H14O4, featuring hydroxyl groups at positions 1 and 8, a methoxy group at position 3, and a methyl substituent at position 6. It is typically a yellowish solid with limited solubility in water but better solubility in organic solvents. Known for its antioxidant properties, it is used in specialized chemical applications and research.