8-Amino-2-naphthalenesulfonic acid

Base Information

• Chemical Name: 8-Amino-2-naphthalenesulfonic acid
• CAS No.: 119-28-8
• Molecular Formula: C10H9NO3S
• Molecular Weight: 223.252
• Hs Code.: 29214500
• European Community (EC) Number: 204-311-4
• NSC Number: 4983
• UNII: 21QEG50798
• DSSTox Substance ID: DTXSID7059486
• Nikkaji Number: J5.312K
• Wikidata: Q27253569
• ChEMBL ID: CHEMBL4165941
• Mol file: 119-28-8.mol

Synonyms:Cleve's acid

Chemical Property of 8-Amino-2-naphthalenesulfonic acid

Chemical Property:

• Melting Point: ≥300 °C(lit.)
• Refractive Index: 1.713
• Boiling Point: 220°C (rough estimate)
• PKA: pK1: 3.66 (25°C)
• PSA: 88.77000
• Density: 1.502 g/cm³
• LogP: 3.33070
• Storage Temp.: Sealed in dry,Room Temperature
• XLogP3: 1.2
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 1
• Exact Mass: 223.03031432
• Heavy Atom Count: 15
• Complexity: 322

Purity/Quality:

99.9% ^*data from raw suppliers

1-Amino-7-naphthalenesulfonicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36/37/39-45

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Other Classes -> Other Organic Compounds
• Canonical SMILES: C1=CC2=C(C=C(C=C2)S(=O)(=O)O)C(=C1)N
• Uses: Intermediate of dyestuff 8-Amino-2-naphthalenesulfonic acid can be used as a reactant to synthesize: Fe3O4/sulfonated polyaniline composite material via chemical oxidative polymerization with aniline in the presence of magnetite (Fe3O4) nanoparticles. Prismatic crystals of strychnine-8-ammonio-2-naphthalenesulfonate-water by heating with strychnine in water/ethanol solvent mixture.5-amino-9-dialkylamino benzo[a]phenoxazine dyes (Nile blue analogs) by condensation with N-alkyl or N-sulfo-propyl 4-arylazo-substituted 3-hydroxyaniline.

Technology Process of 8-Amino-2-naphthalenesulfonic acid

There total 7 articles about 8-Amino-2-naphthalenesulfonic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

naphthalene-2-sulfonate (120-18-3) → 5-aminonaphthalene-2-sulfonic acid (119-79-9) + 8-amino-2-naphthalenesulfonic acid (119-28-8)

Guidance literature:

With sulfuric acid; nitric acid; at 25 ℃; anschl. bei 10grad, Reduzieren des erhaltenen Gemisches mit Eisen und sehr verd. Salzsaeure;

Reference yield:

1-nitro-7-naphthalenesulfonic acid (18425-74-6) → 8-amino-2-naphthalenesulfonic acid (119-28-8)

Guidance literature:

With ammonium sulfide;

Reference yield:

8-hydroxy-naphthalene-2-sulfonic acid (20191-62-2) → 8-amino-2-naphthalenesulfonic acid (119-28-8)

Guidance literature:

Reaktion des Natriumsalzes; Erhitzen des Reaktionsprodukts mit Ammoniak unter Druck auf 100-110grad, dann beim Ansaeuern;

upstream raw materials:

naphthalene-2-sulfonate

1-nitro-7-naphthalenesulfonic acid

8-hydroxy-naphthalene-2-sulfonic acid

sulfuric acid

Downstream raw materials:

8-amino-5-phenylazo-naphthalene-2-sulfonic acid

5,8-diamino-naphthalene-2-sulfonic acid

1,7-Dihydroxynaphthalene

8-amino-2-naphthol

Refernces

• 1、 -. "Polyazo dye compounds having vinylsulfone type and pyridinium type fiber reactive groups". . . Retrieved 2008/06/13.
• 2、 -. "Bisazo brown reactive dye". . . Retrieved 2008/06/13.