Common name

Remazol black

IUPAC name

CI reactive black 5

Tetrasodium;4-amino-5hydroxy-3,-bis[[4-(2-sulfonatooxyethylsulfonyl) phenyl ] diazenyl ]naphthalene-2,7-disulfonate

Family

Azo dye

Formula

C₂₆H₂₁O₁₉N₅S₆Na₄

Structure

Molar mass

999.8 g/mol

${\lambda }_{\max }$

593 nm

Solubility

82 g/L in water at 293 K