Synonyms:C.I. 22311; C.I. 22 311; C.I. Direct Brown 2, disodium salt; C.I. Direct Brown 2; Direct Brown 2; 5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid, disodium salt; benzoic acid,5-((4′-((7-amiono-1-hydroxy-3-sulfo-2-naphthyl)azo)(1,1′-biphenyl)-4-yl)azo)-2-hydroxy-,disodium salt; diamine brown; diazine brown; diphenyl brown; direct fast brown; DIRECT FAST BROWN M; brown m; chloramine brown m; chrome leather brown m; phenamine brown mb; union brown m; disodium (3E)-3-({4′-[(2Z)-2-(7-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazino]biphenyl-4-yl}hydrazono)-6-oxocyclohexa-1,4-diene-1-carboxylate; (3Z)-3-({4′-[(2E)-2-(7-amino-1-oxo-3-sulfonaphthalen-2(1H)-ylidene)hydrazino]biphenyl-4-yl}hydrazono)-6-oxocyclohexa-1,4-diene-1-carboxylic acid; Direct Dark Brown M,Direct fast brown.
Appearance:Brown powder.
Density:1.54g/cm3
Application:It is mainly used for dyeing cotton, linen, viscose and other fabrics, as well as silk, nylon, pulp and leather.
Quality guarantee period: 24 months.
Packing: 25kgs iron drum.
Storage:Store in a cool and ventilated room and prevent moisture and heat.