ChemicalBook > Product Catalog >Organic Chemistry >Amides >Sulfonic acids amino compound >2-NAPHTHYLAMINE-8-SULFONIC ACID

2-NAPHTHYLAMINE-8-SULFONIC ACID

2-NAPHTHYLAMINE-8-SULFONIC ACID Structure
CAS No.
86-60-2
Chemical Name:
2-NAPHTHYLAMINE-8-SULFONIC ACID
Synonyms
BADEN ACID;BADISCHE ACID;AMINOCROCEINIC ACID;7-Naphthylamine-1-sulfonic acid;2-NAPHTHYLAMINE-8-SULFONIC ACID;7-amino-1-naphthalenesulfonicaci;7-aminonaphthalene-1-sulfonicaci;7-AMINO-1-NAPHTHALENESULFONIC ACID;2-Aminonaphthalene-8-Sulfonic Acid;7-aminonaphthalene-1-sulfonic acid
CBNumber:
CB8237057
Molecular Formula:
C10H9NO3S
Molecular Weight:
223.25
MOL File:
86-60-2.mol
Modify Date:
2023/11/3 13:27:54

2-NAPHTHYLAMINE-8-SULFONIC ACID Properties

Boiling point 220°C (rough estimate)
Density 1.3588 (rough estimate)
refractive index 1.6500 (estimate)
pka -0.34±0.40(Predicted)
Water Solubility 0.6g/L(20 ºC)

SAFETY

Risk and Safety Statements

RIDADR  1759
HazardClass  8
PackingGroup  III

2-NAPHTHYLAMINE-8-SULFONIC ACID Chemical Properties,Uses,Production

Description

2-Aminonaphthalene-8-sulfonic acid [86- 60-2]. (7-aminonaphthalene-1-sulfonic acid), Badische acid, C10H9NO3S, Mr 223.24, crystallizes from water as needles or prisms although only 0.5 % soluble at 100 ℃. Alkalimetal salts are quite soluble in water. Caustic fusion yields 7-amino-1-naphthol, sulfonation in the cold with 20 % oleum gives 2-aminonaphthalene-6,8-disulfonic acid, but nitration gives a mixture of products. 2-Aminonaphthalene-8-sulfonic acid reacts with diazo compounds to form diazoamino compounds rather than coupling to give azo derivatives.

Chemical Properties

Colorless needles, partially soluble in water and alkalies, slightly soluble in alcohol.

Uses

Azo dye intermediate.

Production Methods

2-Hydroxynaphthalene-8-sulfonic acid is aminated by a Bucherer reaction under conditions similar to those used for Tobias acid.

Global( 25)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
Shenzhen Nexconn Pharmatechs Ltd +86-755-89396905 +86-15013857715 China 10406 58 Inquiry
Dideu Industries Group Limited +86-29-89586680 +86-15129568250 China 22854 58 Inquiry
DAYANG CHEM (HANGZHOU) CO.,LTD +8617705817739 China 53881 58 Inquiry
Biosynth Biological Technology (Suzhou) Co Ltd 51288865780 China 233051 58 Inquiry
Pushan Industry (Shaanxi) Co., Ltd 029-81310890 18165209495 China 9998 58 Inquiry
Anyang Hongmeng New Materials Co., Ltd 19588588067 19588588067 China 8581 58 Inquiry
Shanghai Jiegu Biotechnology Co., Ltd. 021-51698675 China 6859 58 Inquiry
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 029-81120477 17792793610 China 9763 58 Inquiry
Nanjing Shizhou Biology Technology Co.,Ltd 025-85563444 15850508050 China 6857 58 Inquiry
Aceto Corporation 516 627 6000 United States 2619 75 Inquiry
7-amino-1-naphthalenesulfonicaci 7-AMINO-1-NAPHTHALENESULFONIC ACID AMINOCROCEINIC ACID 2-NAPHTHYLAMINE-8-SULFONIC ACID 7-azanylnaphthalene-1-sulfonic acid 7-Naphthylamine-1-sulfonic acid BADISCHE ACID BADEN ACID 7-aminonaphthalene-1-sulphonic acid 7-aminonaphthalene-1-sulfonic acid 2-Aminonaphthalene-8-Sulfonic Acid 2-NAPHTHYLAMINE-8-SULFONIC ACID ISO 9001:2015 REACH 7-aminonaphthalene-1-sulfonicaci 1-Naphthalenesulfonicacid, 7-amino- 86-60-2 Intermediates of Dyes and Pigments