9,10-Anthracenedione, 1-Hydroxy-; 1-Hydroxyanthracene-9,10-Dione; 1-Hydroxy Anthraquinone; 4-Hydroxyanthraquinone; 1-Hydroxy-9,10-Anthracenedione; 10-Anthracenedione,1-Hydroxy-9; 1-Hydroxy-10-Anthracenedione

Brief Introduction

1-hydroxyanthraquinone is a natural product with oral activity. It can come from some plants and has carcinogenic effect.

Benz[Cd]Indol-2(1H)-One

CAS:130-00-7

Molecular Formula:C11H7NO

Alias

More Information

Naphthostyril; Benzo[Cd]Indol-2(1H)-One; 1H-Benzo[Cd]Indol-2-One

Brief Introduction

Intermediate for synthesizing vat dyes and organic pigments.

1-Amino-8-Naphthol-4,6-Disulfonic Acid

CAS:130-23-4

Molecular Formula:C10H9NO7S2

Alias

More Information

1-Amino-8-Naphtho-4,6-Disulfonic Acid; European K-Acid; 8-Amino-1-Naphthol-3,5-Disulfonic Acid; 8-Amino-1-Hydroxynaphthalene-3,5-Disulphonic Acid; 1-Amino-8-Hydroxy-Naphthalene-4,6-Disulphonic Acid; 4-Amino-5-Hydroxy-1,7-Naphthalenedisulfonic Acid; 1-Hydroxy-8-Aminonaphthalene-3,5-Disulphonic Acid; 1 Amino 8 Hydroxy 4:6 Disulfonic Acid; 5-Hydroxy-4-Aminonaphthalene-1,7-Disulphonic Acid; 4-Amino-5-Hydroxy-Naphthalene-1,7-Disulphonic Acid; K Acid; 4-Amino-5-Naphthol-1,7-Disulfonic Acid; 4-Amino-5-Hydroxynaphthalene-1,7-Disulfonic Acid

Brief Introduction

Used as intermediate of azo dyes, reactive dyes and organic pigments, mainly used in the production of cationic dyes, reactive brilliant red k-2g, etc.

2-Amino-4,8-Naphthalenedisulfonic Acid

CAS:131-27-1

Molecular Formula:C10H9NO6S2

Alias

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3-Aminonaphthalene-1,5-Disulphonic Acid; Acid Iv; Kyselina C; 4,8-Disulfo-2-Naphthalamine; Amino C Acid; 2-Naphthylamine-4,8-Disulphonic Acid; 2-Amino-4,8-Disulpho-Naphthalene; 2-Naphthylamine-4,8-Disulfonic Acid; 2-Aminonaphthalene-4,8-Disulphonic Acid; 3-Amino-1,5-Naphthalenedisulfonic Acid; 4,8-Disulfo-2-Aminonaphthalene; 2-Ethylamino-4,8-Dinaphthalene; 5-Naphthalenedisulfonicacid,3-Amino-1; Beta-Naphthylamine-4,8-Disulfonicacid; Beta-Naphthylaminedisulfonicacid; Kyselina2-Naftylamin-4,8-Disulfonova; (Rs/Sr)-5-Methyl-3-Nitroso-4-Oxazolidinecarboxyli

Brief Introduction

The pure product of 2-naphthylamine-4,8-disulfonic acid is white crystal, soluble in water, and the industrial product is brown liquid or gray paste with blue fluorescence. After sulfonation of naphthalene with fuming sulfuric acid and nitration with mixed acid, 2-nitro-4,8-dinaphthylsulfonic acid magnesium salt was obtained by separating isomers with magnesium salt. Sodium salt was made by adding sodium hydroxide, and then was prepared by reduction. It is a dye intermediate used for the synthesis of reactive dyes and direct dyes, such as reactive yellow, reactive golden yellow, reactive brown and direct light blue b2bl.

7,7'-(Carbonylbis(Azanediyl))Bis(4-Hydroxynaphthalene-2-Sulfonic Acid)

CAS:134-47-4

Molecular Formula:C21H16N2O9S2

Alias

More Information

6,6'-Ureylene-Bis(1-Naphthol-3-Sulfonic Acid); 4,4'-Dihydroxy-7,7'-Ureylenedi(Naphthalene-2-Sulphonic Acid); 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-2-Naphthalenesulfonic Acid]; Phosgenated; N,N'-Bis(4-Hydroxy-2-Sulfonaphthalene-7-Yl)Urea; 7,7'-Ureylenebis(4-Hydroxy-2-Naphthalenesulfonic Acid); N,N'-Bis[6-(1-Naphthol-3-Sulfonic Acid)]Urea; 6,6'-Ureylenbis-1-Naphthol-3-Sulfonic Acid

Brief Introduction

7,7'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid) is an intermediate of azo dyes, which is used to produce direct orange s, direct acid resistant scarlet 4BS, etc.

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