6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt

CAS No.：3624-68-8

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
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6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt Basic information

Product Name:	6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt
Synonyms:	1-naphthalenesulfonicacid,6-[(5-chloro-2-hydroxy-3-sulfophenyl)azo]-5-hydroxy;AcidchromenavyblueRRN;AcidmordantblueA3R;C.I.Mordantblue9;MORDANT BLUE 9;CI 14855;sodium 6-(5-chloro-2-hydroxy-4-sulphophenylazo)-5-hydroxynaphthalene-1-sulphonate;Acid mordant Blue 9
CAS:	3624-68-8
MF:	C16H9ClN2Na2O8S2
MW:	502.81
EINECS:	222-828-3
Product Categories:	Dyes and Pigments
Mol File:	3624-68-8.mol

6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt Chemical Properties

form	Fine Crystalline Powder
Colour Index	14855
color	Dark blue
InChIKey	FBNOWTWLVCWGCZ-BUFQOAPZSA-L
EPA Substance Registry System	C.I. Mordant Blue 9, disodium salt (3624-68-8)

Safety Information

Safety Statements	24/25
WGK Germany	3
HS Code	32041200

MSDS Information

Provider	Language
6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt	English
SigmaAldrich	English
ACROS	English

6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt Usage And Synthesis

Chemical Properties

dark blue fine crystalline powder

Preparation

3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazotization, and 5-Hydroxynaphthalene-1-sulfonic acid?coupling.

Properties and Applications

red light navy blue. This product soluble in water is purple, in the water solubility is 50 g/l (80 ℃), slightly soluble in alcohol. In concentrated sulfuric acid for blue purple, dilution to pink; In concentrated nitric acid for yellow brown. Its aqueous solution to join concentrated hydrochloric acid to red; With strong caustic for magenta. Mainly used for wool, silk, nylon dyeing and color matching dye.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	5	6	4	4	4-5	4-5	4-5
AATCC	4-5	7	4	4-5	5

6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt Preparation Products And Raw materials

Raw materials

2-Amino-4-chlorophenol-6-sulfonic acid-->1-Naphthol-5-sulfonic acid

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