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5-Amino-1-naphthalenesulfonic acid

5-Amino-1-naphthalenesulfonic acid Structure
5-Amino-1-naphthalenesulfonic acid
  • CAS No.84-89-9
  • Chemical Name:5-Amino-1-naphthalenesulfonic acid
  • CBNumber:CB7713334
  • Molecular Formula:C10H9NO3S
  • Formula Weight:223.25
  • MOL File:84-89-9.mol
5-Amino-1-naphthalenesulfonic acid Property
  • Melting point >300°C
  • Boiling point 220°C (rough estimate)
  • Density 1.3588 (rough estimate)
  • refractive index 1.6500 (estimate)
  • solubility Aqueous Base (Slightly), DMSO (Slightly)
  • pka pK1: 3.69 (25°C)
  • form powder to crystal
  • color Purple to Dark purple to Dark red
  • Water Solubility Soluble in hot water.
  • Merck 14,6404
  • BRN 2214149
  • CAS DataBase Reference 84-89-9(CAS DataBase Reference)
  • EWG's Food Scores 1
  • FDA UNII W70WC365OD
  • EPA Substance Registry System 1-Naphthalenesulfonic acid, 5-amino- (84-89-9)
  • UNSPSC Code 12352100
  • NACRES NA.22
Safety
  • Hazard Codes  :C
  • Risk Statements  :20/21/22-34
  • Safety Statements  :26-36/37/39-45
  • RIDADR  :UN 2585 8/PG 3
  • WGK Germany  :3
  • RTECS  :QK1270500
  • TSCA  :Yes
  • HS Code  :2921.45.2000
  • HazardClass  :8
  • PackingGroup  :III
  • NFPA 704:
    0
    1 0
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements H335-H312-H314-H332-H315-H319
  • Precautionary statements P280g-P264-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P280-P305+P351+P338-P310
5-Amino-1-naphthalenesulfonic acid Price More Price(6)
  • Brand: ALFA India
  • Product number: ALF-A11433-22
  • Product name : 5-Aminonaphthalene-1-sulfonic acid, tech. 90%
  • Purity: 
  • Packaging: 100g
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  • Updated: 2022/05/26
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  • Brand: ALFA India
  • Product number: ALF-A11433-18
  • Product name : 5-Aminonaphthalene-1-sulfonic acid, tech. 90%
  • Purity: 
  • Packaging: 50g
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  • Updated: 2022/05/26
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  • Brand: ALFA India
  • Product number: ALF-A11433-14
  • Product name : 5-Aminonaphthalene-1-sulfonic acid, tech. 90%
  • Purity: 
  • Packaging: 25g
  • Price: ₹2096
  • Updated: 2022/05/26
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  • Brand: TCI Chemicals (India)
  • Product number: A0345
  • Product name : 5-Amino-1-naphthalenesulfonic Acid
  • Purity: 
  • Packaging: 25G
  • Price: ₹10500
  • Updated: 2022/05/26
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  • Brand: SRL
  • Product number: 91085
  • Product name : 5-Aminonaphthalene-1-Sulphonic Acid pure, 90%
  • Purity: 
  • Packaging: 25Gms
  • Price: ₹2630
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5-Amino-1-naphthalenesulfonic acid Chemical Properties,Usage,Production

  • Chemical Properties ?1-Aminonaphthalene-5-sulfonic acid [84- 89-9]. (5-aminonaphthalene-1-sulfonic acid), Laurent’s acid, L acid, Purpurin acid, C10H9NO3S, Mr 223.24, crystallizes from hot water as needles of the monohydrate. The alkalimetal salts are all readily soluble in water. Bromination yields the 2,4-dibromo derivative, vigorous nitration gives 2,4-dinitro-1- hydroxynaphthalene, and sulfonation results in 1-aminonaphthalene-2,5,7-trisulfonic acid. 1- Hydroxynaphthalene-5-sulfonic acid is obtained by heating 104 with aqueous bisulfite (reverseBucherer reaction) or via the diazo compound. Caustic fusion produces 5-amino-1-hydroxynaphthalene. Coupling with diazo compounds takes place in the 2-position.
  • Uses 5-Aminonaphthalene-1-sulfonic acid is an deriva- tizing agents in the precolumn derivatization of some chiral phenoxy acid. Cu(II) based on a dansyl derivative was synthesized with 29.2% overall yield by a seven-step synthetic procedure from the readily available starting material 5-aminonaphthalene-1-sulfonic acid.
  • Uses Intermediate of dyestuff
  • Definition ChEBI: 5-Amino-1-naphthalenesulfonic acid is a naphthalenesulfonic acid.
  • Production Methods Laurent’s acid is coproduced with Peri acid as the minor component of a 5:2 isolated product ratio.
  • 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 IV 2800.]
5-Amino-1-naphthalenesulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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5-Amino-1-naphthalenesulfonic acid Spectrum
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  • 5-Amino-1-naphthalenesulfonic Acid, ≥ 98.0%
  • 5-Aminonaphthalene-1-Sulphonic Acid pure, 90%
  • 5-Amino-1-naphthalenesulfonic acid ISO 9001：2015 REACH
  • 5-Aminonaphthalene-1-sulfonicaci
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