[1,2,4]三唑并[1,5-a]嘧啶-2-羧酸,1,7-二氫-5-羥基-7-亞氨基- 4-[[2,4-dihydroxy-3-[(4-nitrophenyl)azo]-5-[[4-(phenylamino)-3-sulphophenyl]azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonicacid,sodiumsalt

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