1-AMINO-2-NAPHTHALENESULFONIC ACID

Product Name: 1-AMINO-2-NAPHTHALENESULFONIC ACID
CAS No.: 81-06-1
Chemical Name: 1-AMINO-2-NAPHTHALENESULFONIC ACID
Synonyms: O-NAPHTHIONIC ACID;ONZWNZGVZFLMNZ-UHFFFAOYSA-N;1,2-Naphthylaminesulfonic acid;α-Naphthylamine-2-sulfonic acid;1-NAPHTHYLAMINE-2-SULFONIC ACID;1-amino-2-naphthalenesulfonicaci;1-aminonaphthalene-2-sulfonicaci;1-AMINO-2-NAPHTHALENESULFONIC ACID;1-aminonaphthalene-2-sulfonic acid;1-NAPHTHYLAMINE-2-SULFONIC ACID 98%
CBNumber: CB8781833
Molecular Formula: C10H9NO3S
Formula Weight: 223.25
MOL File: 81-06-1.mol

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1-AMINO-2-NAPHTHALENESULFONIC ACID Property

Density: 1.3588 (rough estimate)
refractive index: 1.6500 (estimate)
pka: pK1: 1.71 (25°C)
Water Solubility: 4.1g/L(20 ºC)
EPA Substance Registry System: 2-Naphthalenesulfonic acid, 1-amino- (81-06-1)

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Safety

TSCA: TSCA listed

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: S442585
Product name: 1-AMINO-2-NAPHTHALENESULFONIC ACID
Purity: Aldrich<sup>CPR</sup>
Packaging: 1 unit
Price: $197
Updated: 2026/03/19

Sigma-Aldrich

Product number: S442585
Product name: 1-AMINO-2-NAPHTHALENESULFONIC ACID
Purity: AldrichCPR
Packaging: 1G
Price: $179
Updated: 2024/03/01

American Custom Chemicals Corporation

Product number: CHM0006479
Product name: 1-AMINO-2-NAPHTHALENESULFONICACID
Purity: 95.00%
Packaging: 1G
Price: $638.1
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0006479
Product name: 1-AMINO-2-NAPHTHALENESULFONICACID
Purity: 95.00%
Packaging: 5G
Price: $911.99
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0006479
Product name: 1-AMINO-2-NAPHTHALENESULFONICACID
Purity: 95.00%
Packaging: 10G
Price: $1309.78
Updated: 2021/12/16

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1-AMINO-2-NAPHTHALENESULFONIC ACID Chemical Properties,Usage,Production

Chemical Properties

1-Aminonaphthalene-2-sulfonic acid [81- 06-1]. ortho-naphthionic acid, C10H9NO3S, Mr 223.24, mp 262 – 265℃ (decomp.), is sparingly soluble in cold water but dissolves in hot water to give a 3 % solution. The sodium salt is more readily soluble in water (1.7 % at 20℃ and 10 % at 100℃). The calcium salt is similarly soluble, but the barium salt is almost insoluble.

Production Methods

1-Naphthylamine can be sulfonated by heating with sulfuric acid at 180 – 185℃, but the transient intermediate naphthalene-1-sulfamic acid is best prepared from 1-aminonaphthalene-4-sulfonic acid (naphthionic acid). When sodium naphthionate is heated in a solvent such as o-dichlorobenzene or xylene at 225℃, thermal rearrangement occurs to give the 1,2-isomer in high yield.

1-AMINO-2-NAPHTHALENESULFONIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

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1-AMINO-2-NAPHTHALENESULFONIC ACID Suppliers

China 13 Germany 1 United Kingdom 3 United States 7 Global 24

RYSS TECH LTD

Tel: 400-188-0725 +86 21 34310725 13611771617
Fax: +86 21 34311076
Country: China
ProdList: 2002
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Dideu Industries Group Limited

Tel: +86-29-89586680 +86-15129568250
Email: 1026@dideu.com
Country: China
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Hefei TNJ Chemical Industry Co.,Ltd.

Tel: +86-0551-65418671 +8618949823763
Fax: 0551-65418697
Email: sales@tnjchem.com
Country: China
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Guangdong Wengjiang Chemical Reagent Co.,Ltd.

Tel: 0751-2815983 13927872582
Fax: 0751-2886750
Email: 3008325437@qq.com
Country: China
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Merck KGaA

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Guangdong Yuanfeng Chemical Reagent Co., Ltd

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DAYANG CHEM (HANGZHOU) CO.,LTD

Tel: +86-88938639 +86-17705817739
Email: info@dycnchem.com
Country: China
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Hu Bei Jiutian Bio-medical Technology CO.,Ltd

Tel: 027-88013699 17354350817
Email: Ryan@jiutian-bio.com
Country: China
ProdList: 5945
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View Lastest Price from 1-AMINO-2-NAPHTHALENESULFONIC ACID manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: 1-aminonaphthalene-2-sulphonic acid 81-06-1
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 100 tons
Release date: 2019-12-30

81-06-1, 1-AMINO-2-NAPHTHALENESULFONIC ACIDRelated Search:

1-amino-2-naphthalenesulfonicaci

1,2-Naphthylaminesulfonic acid

α-Naphthylamine-2-sulfonic acid

1-azanylnaphthalene-2-sulfonic acid

O-NAPHTHIONIC ACID

ONZWNZGVZFLMNZ-UHFFFAOYSA-N

1-AMINO-2-NAPHTHALENESULFONIC ACID

1-NAPHTHYLAMINE-2-SULFONIC ACID

1-aminonaphthalene-2-sulphonic acid

1-aminonaphthalene-2-sulfonic acid

1-NAPHTHYLAMINE-2-SULFONIC ACID 98%

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1-aminonaphthalene-2-sulfonicaci

1-AMINO-2-NAPHTHALENESULFONIC ACID ISO 9001：2015 REACH

81-06-1

1981-06-1