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Dyes

disodium salt; 4-Hydroxy-3,4?-azodi-1-naphthalenesulfonic acid

Chemical Name disodium salt; 4-Hydroxy-3,4?-azodi-1-naphthalenesulfonic acid
C.I. No. 14720
CAS No. 3567-69-9
Structure disodium salt; 4-Hydroxy-3,4?-azodi-1-naphthalenesulfonic acid
Specification

Molecular Formula : C20-H14-N2-O7-S2.2Na

Molecular Weight   : 502.44

Shade  : Rubine & Bluish Red

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