ChemicalBook > Product Catalog > Organic Chemistry > Carboxylic acids and derivatives > Carboxylic acid derivatives > 2-Aminonaphthalene-1-sulfonic acid
2-Aminonaphthalene-1-sulfonic acid
2-Aminonaphthalene-1-sulfonic acid Basic information
- Product Name:
- 2-Aminonaphthalene-1-sulfonic acid
- Synonyms:
-
- SUPER J ACID
- 2 NAPHTHYLAMINE SULPHONIC ACID
- 2-NAPHTHYLAMINE-1-SULFONIC ACID
- 2-AMINO-1-NAPHTHALENESULFONIC ACID
- 2-AMINONAPHTHALENE-1-SULFONIC ACID
- TOBIAS ACID
- 1-Naphthalenesulfonic acid, 2-amino-
- 1-Naphthalenesulfonicacid,2-amino-
- CAS:
- 81-16-3
- MF:
- C10H9NO3S
- MW:
- 223.25
- EINECS:
- 201-331-5
- Product Categories:
-
- Organics
- Intermediates
- Intermediates of Dyes and Pigments
- Mol File:
- 81-16-3.mol
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2-Aminonaphthalene-1-sulfonic acid Chemical Properties
- Melting point:
- 180 °C
- Boiling point:
- 220°C (rough estimate)
- Density
- 1.3588 (rough estimate)
- refractive index
- 1.5250 (estimate)
- storage temp.
- -20°C Freezer, Under inert atmosphere
- solubility
- DMSO (Slightly), Methanol (Slightly, Heated), Water (Slightly, Heated)
- form
- Solid
- pka
- pK1: 2.35 (25°C)
- color
- White to Off-White
- Water Solubility
- 4.083g/L(20 ºC)
- Merck
- 14,6406
- BRN
- 613084
- CAS DataBase Reference
- 81-16-3(CAS DataBase Reference)
- NIST Chemistry Reference
- 2-Naphthylamine-1-sulfonic acid(81-16-3)
- EPA Substance Registry System
- 2-Amino-1-naphthalenesulfonic acid (81-16-3)
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Safety Information
- Risk Statements
- 36/37/38-40
- Safety Statements
- 26-36/37/39
- RIDADR
- 2585
- WGK Germany
- 1
- RTECS
- QK1250000
- TSCA
- Yes
- HS Code
- 2921.45.9010
- HazardClass
- 8
- PackingGroup
- III
- Hazardous Substances Data
- 81-16-3(Hazardous Substances Data)
MSDS
- Language:English Provider:2-Naphthylamine-1-sulfonic acid
- Language:English Provider:SigmaAldrich
- Language:English Provider:ALFA
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2-Aminonaphthalene-1-sulfonic acid Usage And Synthesis
Chemical Properties
Grey white to light pink powder
Uses
Azo dye intermediate, optical brighteners.
Uses
2-Amino-1-naphthalenesulfonic acid has been used in the preparation of 2-(2-naphthylamino)benzoxazole by reacting with 2-chlorobenzoxazole.
General Description
2-Amino-1-naphthalenesulfonic acid is a manufacturing intermediate in the monosulfo monoazo color additive D&C Red No. 34 and its lakes.
Purification Methods
Crystallise the acid under nitrogen from boiling water and dry it in a steam oven [Bryson Trans Faraday Soc 47 522, 527 1951]. [Beilstein 14 III 2240, 14 IV 2792.]
2-Aminonaphthalene-1-sulfonic acid Preparation Products And Raw materials
Preparation Products
J acidLithol Redsodium 2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate 3-Hydroxy-N-2-naphthyl-2-naphthamideReactivebrilliantredKE-7B disodium 2-[[1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]naphthalene-1-sulphonate REACTIVE RED 1952-Amino-1,5-naphthalenedisulfonic acid
Raw materials
2-Aminonaphthalene-1-sulfonic acidSupplier
Dao Kui Chemical (Shanghai) Co. LTD Gold
- Tel
- 15995509766
- 296549925@qq.com
Henan yingchuang Gold
- Tel
- 0370-3678455 16650217012
- hnyingchuang@163.com
Wuhan Penglei Biological Technology Co., Ltd. Gold
- Tel
- 18672616696
- 229092275@qq.com
J & K SCIENTIFIC LTD.
- Tel
- 010-82848833 400-666-7788
- jkinfo@jkchemical.com
Alfa Aesar
- Tel
- 400-6106006
- saleschina@alfa-asia.com
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2-Aminonaphthalene-1-sulfonic acid(81-16-3)Related Product Information
- 2-Naphthylamine
- Sulfanilic acid
- p-Toluenesulfonic acid
- Ethyl 2-(Chlorosulfonyl)acetate
- Taurine
- Amlodipine Besylate
- 4-Amino-benzenesulfonic acid monosodium salt
- Ammonium sulfamate
- SULFONIC ACID
- Folic acid
- Glycine
- 1-DODECANESULFONIC ACID SODIUM SALT
- Chlorosulfonic acid
- Sulfamic acid
- phosphoric acid
- 1,5-Naphthalenedisulfonic acid
- Molasses
- 1-Naphthalenesulfonic acid