Basic information Safety Supplier Related
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Direct Grey D

Basic information Safety Supplier Related

Direct Grey D Basic information

Product Name:
Direct Grey D
Synonyms:
  • sodium 6-amino-3-[[4-[(4-aminophenyl)azo]-4-methoxy-m-tolyl]azo]-4-hydroxynaphthalene-2-sulphonate
  • Direct Black 17
  • Direct Black 17 (27700)
  • Direct Grey D
  • 2-Naphthalenesulfonic acid, 6-amino-3-4-(4-aminophenyl)azo-2-methoxy-5-methylphenylazo-4-hydroxy-, monosodium salt
  • CIDIRECTBLACK17
  • Direct grey 17
  • 2-naphthalenesulfonic acid, 6-amino-3-((4-((4-aminophenyl)azo)-2-methoxy-5-meth
CAS:
2945-96-2
MF:
C24H22N6NaO5S
MW:
529.52345
EINECS:
220-955-9
Product Categories:
  • Organics
  • Dyes and Pigments
Mol File:
2945-96-2.mol
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Direct Grey D Usage And Synthesis

Preparation

(a) 4-Nitrobenzenamine diazo, and 2-Amino-4-methylanisole coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, and then will the nitro reduction for amino; (b) N-(4-aminophenyl)acetamide diazo, and 2-Amino-4-methylanisole close, then diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid acid hydrolysis, then three amino acetylcholine.

Properties and Applications

green light gray to green and black. Black powder. Soluble in water for violet black, 80 ℃ in the solubility of 20 g/L, soluble in ethanol gray light purple. The strong sulfuric acid is a deep blue in green, orange brown after diluted precipitation. The dye solution to join strong hydrochloric acid for dark brown, have precipitation; ?Adding concentrated sodium hydroxide solution in gray light purple precipitate. Cellulose fiber of dyeing, the dye absorption rate as well, in 40 ~ 80 ℃ maximum of affinity, discharge the gender is good. Used for cotton or viscose dyeing, is not used for printing. Can also be used for silk, PVA, polyamide fiber and its blended fabric dyeing.

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

Direct Grey D Preparation Products And Raw materials

Raw materials

Direct Grey DSupplier

Winchem Industrial Co. Ltd
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0574-83851061;0574-87083208
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Shanghai Meishui Chemical Technology Co., Ltd
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021-60549325 18616193163
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mail@meishuichem.com
Shanghai Orgchem Co.,Ltd.
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+86-21-5877 1921
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Wuhan FengyaoTonghui Chemical Products Co., Ltd.
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027-87466205
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2678564200@qq.com
Shanghai Dingfen Chemical Technology Co., Ltd.
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021-37590756-
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373600283@qq.com