Direct Black 19

CAS: 6428-31-5

Ref. 3D-FD44459

Product Information

• Name: Direct Black 19
• Synonyms: (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid, 2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis[2-[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]diazenyl]-5-hydroxy-, sodium salt (1:2), 2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt, Artificial Silk Black G, Artificial Silk Black GN, Artificial Silk Black GR, Atlantic Artificial Silk Black G, Bali Viscose Black G, Bali Viscose Black N, Bencidal Fast Black G, Benzanil Fast Black G, Benzo Fast Black G, Benzoform Black RRA-CF, Bonjet Black 891L, Chlorazol Viscose Black B, Chrome Leather Black GNA, Cibafix Direct Black 19, Columbia Fast Black G, Columbia Fast Black GB, Coranil Direct Black B, Cutamin Black CG, Daiwa Black 320H, Diamine Fast Black B, Diaphtamine Fast Black KG, Direct Artificial Silk Black G, Direct Black G, Direct Black L 3BG, Direct Fast Black G, Direct Fast Black GU, Direct Fast Black SA, Direct Lightfast Black G, Direct Rayon Black KSG, Fenamin Black GR, Formal Fast Black 2B, Hispamin Fast Black CG, Indoblack GR, Kayafect Black LW, Kayarus Black G, Kayarus Black G Conc., Orient P 200, Orient Water Black 100L, Orient Water Black 108L, Orient Water Black 200L, Orient Water Black 7, Orient Water Black L 200, Phenamine Viscose Black RR, Pyrazol Fast Black GS, Rayon Black G, Rayon Black GSN, Rayon Black M, Rayon Fast Black B, Solar Black G, Sumilight Black G, Tertrodirect Black V, Tetrazo Deep Black GC Extra, Visco Black N, Viscose Black G, Viscose Black GNA, Viscose Black J, Viscose Black N, Viscose Black NG, Vondacel Black VG, Vondacel Black VN, Water Black 100, Water Black 100L, Water Black 108L, Water Black 200L, Water Black 7, Water Black L 200, Water Black P 200, disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate, C.I. Direct Black 19, disodium salt, C.I. 35255

Description

Direct Black 19 is a polymer that is a reactive dye. It is a cationic surfactant and can be used in wastewater treatment to remove color from the water. Direct Black 19 has been shown to inhibit the growth of Gram-positive bacteria such as Staphylococcus aureus, Enterococcus faecalis, and Bacillus subtilis. The use of this polymer also decreases the amount of nitrogen atoms in the water and reduces the chloride content. This product is insoluble in water and does not produce any gas when heated.
Direct Black 19 has shown no toxic effects on humans or animals.

• Brand: Biosynth

Chemical properties

• Molecular weight: 839.77 g/mol
• Formula: C₃₄H₂₇N₁₃O₇S₂•Na₂
• Purity: Min. 95%