diacetate of 2,3,6,7-tetramethylnaphthazarin

2,3-二甲基-1,4-苯醌

2,3-二甲苯酚

2,3,6,7-tetramethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone

diacetate of 2,3,6,7-tetramethyl-5,8-dihydro-1,4-naphthalenediol