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Direct black 75 (C.I. 35870)

Direct black 75 (C.I. 35870) Structure
Direct black 75 (C.I. 35870) structure
CAS No.
2679-49-4
Chemical Name:
Direct black 75 (C.I. 35870)
Synonyms
C.I.35870;Direct Black 75;C.I.Direct Black 75;Direct black 75 (C.I. 35870);C.I.Direct Black 75:C.I.35870;3-[[4-[[4-[[1-Hydroxy-7-[(2-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-3-sodiosulfo-2-naphthalenyl]azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt
CBNumber:
CB21486203
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
2679-49-4.mol
Last updated:2022-12-21 16:56:50
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Direct black 75 (C.I. 35870) Properties

FDA UNII B9I2DO4X39

Direct black 75 (C.I. 35870) Chemical Properties,Uses,Production

Preparation

3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling, and then diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

blue ash. Dark grey powder. Soluble in water as dark blue, soluble in ethanol. The strong sulfuric acid dyes for violet black, diluted into dark purple. The dye solution to join strong hydrochloric acid tresses, precipitation; Add thick still as dark blue sodium hydroxide solution, but have precipitation. Water-soluble general, sensitive to that fights. In dyeing copper and iron ion colored light basic unchanged. Used for cotton, viscose and their blended fabric and silk of dyeing and printing, also used in leather and paper color. Can and dispersal dyes with bath of high temperature on polyester/cotton blended fabric dyeing.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 5 5 2 2
AATCC 4 5 5 2-3 2-3

Direct black 75 (C.I. 35870) Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid 6-Amino-4-hydroxy-2-naphthalenesulfonic acid 2-Amino-4,8-naphthalenedisulfonic acid 6-Hydroxynaphthalene-2-sulphonic acid 1-Naphthylamine

Preparation Products

2679-49-4(Direct black 75 (C.I. 35870))Related Search:

Direct black 77 (C.I. 35860) 5-Amino-3-[[4'-[[4-[(8-amino-1-hydroxy-3,6-disulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt DIRECT BLACK 80 Direct Black 76 1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt
DIRECT BLACK 9 disodium 4-amino-3-[(4-aminophenyl)azo]-6-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-5-hydroxynaphthalene-1-sulphonate 2-Naphthalenesulfonic acid, 6-amino-3-[[4'-[(4-amino-6-sulfo-1-naphthalenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, disodium salt C.I. Direct Black 87

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Direct black 75 (C.I. 35870) 3-[[4-[[4-[[1-Hydroxy-7-[(2-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-3-sodiosulfo-2-naphthalenyl]azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt C.I.35870 C.I.Direct Black 75 Direct Black 75 C.I.Direct Black 75:C.I.35870 2679-49-4