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- Details for C.I. Direct Red 81
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C.I. Direct Red 81 25188-42-5
Category : Dyestuffs and Pigments/Direct Dyes
CAS NO : 25188-42-5 EC NO : 246-727-9 MF : C29H21N5O8S2 MW : 631.6357 Synonyms : C.I. Direct Red 81;7-Benzamido-4-hydroxy-3-((4-((4-sulphophenyl)azo)phenyl)azo)naphthalene-2-sulphonic acid;(3E)-7-(benzoylamino)-4-oxo-3-(2-{4-[(E)-(4-sulfophenyl)diazenyl]phenyl}hydrazinylidene)-3,4-dihydronaphthalene-2-sulfonic acid;7-benzamido-4-hydroxy-3-[4-(4-sulfophenyl)azophenyl]azo-naphthalene-2-sulfonic acid; Molecular Structure : 
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C.I. Direct Red 81