1-Amino-4-hydroxy-2-((4-hydroxyphenyl)thio)anthraquinone 1-Amino-4-hydroxy-2-(4-hydroxyphenyl)thio-9,10-anthracenedione 67923-50-6 9,10-Anthracenedione, 1-amino-4-hydroxy-2-((4-hydroxyphenyl)thio)- EINECS 267-766-8