English name: 2-Hydroxy-N-(4-methoxyphenyl)-11H-benzo[a]carbazole-3-carboxamide

English synonym: NAPHTHOL AS-SG; 2-hydroxy-n-(4-methoxyphenyl)-11h-benzo[a]carbazole-3-carboxamid; BrentholGB; C.1.AzoicCouplingComponent(37595); CIAzoiccouplingcomponent13; LiquidnaphtholAS-SG; Naphtholas-sgpracticalgrade;NaptholAS-SGLL

CAS No.: 86-19-1

Molecular formula: C24H18N2O3

Molecular weight: 382.41

EINECS number: 201-654-1

Related Categories: Intermediates of Dyes and Pigments; Ice Dyeing Dyes; Dyes;

Mol file: 86-19-1.mol

2-hydroxy-N-(4-methoxyphenyl)-11H-benzo[a]carbazole-3-carboxamide

2-hydroxy-N-(4-methoxyphenyl)-11H-benzo[a]carbazole-3-carboxamide

Melting point 324~326°C

CAS Database 86-19-1 (CAS DataBase Reference)

EPA Chemical Information 11H-Benzo[a]carbazole- 3-carboxamide, 2-hydroxy-N-(4-methoxyphenyl)- (86-19-1)

2-Hydroxy-N-(4-methoxyphenyl)-11H-benzo[a]carbazole-3-carboxamide Application and Synthesis Method

Chemical properties Olive green powder. Soluble in pyridine, insoluble in water and soda solution. Soluble in sulfuric acid and caustic soda solution is brownish yellow.

Mainly used as a primer for cotton fiber dyeing and printing

Uses Phenols AS-SG is mainly used for the dyeing of cotton dyed dark, and also for the dyeing of viscose fiber, silk and nylon. It is generally not used for printing. The affinity for cotton is high and the coupling ability is weak. It is used in combination with red base B to dye black, instead of reducing black BB.

Use It is mainly used as a primer for dyeing and printing cotton fabrics. Printing and dyeing black is more distinctive, black and black, not brittle, and good fastness.

Production method 2,3-acid, benzoquinone and p-aminoanisole are used as basic materials. 2,3-acid is sulfonated with fuming sulfuric acid, then alkali-melted by sodium hydroxide, and then condensed in a ring with phenylhydrazine in the presence of chlorobenzene, then carbonated with sodium carbonate, then condensed with aminoanisole, steamed Chlorobenzene is extracted, and finally filtered and dried to obtain a finished product. 1. Sulfonation 2. Alkali fusion 3. Condensation ring closure 4. Condensation product specifications: melting point ≥ 324 ° C. Raw material consumption (kg/t) 2,3-acid 1550 phenylhydrazine 375-p-aminoanisole 350

Production method 2,3-acid, benzoquinone and p-methoxyaniline as raw materials, first sulfonate 2,3-acid with fuming sulfuric acid, alkali fusion of sodium hydroxide, and then condense with phenylhydrazine in chlorobenzene medium The closed-loop obtained 2-hydroxy-1',2'-benzoxazole-3-carboxylic acid, and then condensed with p-methoxyaniline, neutralized, distilled, filtered, and dried to obtain a finished product. .

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