(3,4-dihydroxyphenyl)-(2,4,6-trihydroxyphenyl)methanone
CAS NO.: 519-34-6
Purity :96%
2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid
CAS NO.: 6535-70-2
Purity :98%
2-Naphthol-6-sulfonic acid potassium salt
CAS NO.: 833-66-9
Purity :98%
Sodium 6-hydroxynaphthalene-2-sulfonate
CAS NO.: 135-76-2
Purity :98%