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Sodium 4-amino-1-naphthalenesulfonate

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Sodium 4-amino-1-naphthalenesulfonate Basic information

Product Name:
Sodium 4-amino-1-naphthalenesulfonate
Synonyms:
  • SODIUM NAPHTHIONATE
  • SODIUM NAPTHIONATE
  • SODIUM 1-NAPHTHYLAMINE-4-SULFONATE
  • SODIUM 4-AMINO-1-NAPHTHALENESULFONATE
  • PARA-NAPHTHIONIC ACID, NA SALT
  • NAPHTHYLAMINE-4-SULFONIC ACID SODIUM SALT
  • NAPHTHIONIC ACID SODIUM SALT
  • NAPHTHIONIC ACID SODIUM SALT 0.5-WATER
CAS:
130-13-2
MF:
C10H10NNaO3S
MW:
247.24
EINECS:
204-975-5
Product Categories:
  • Intermediates of Dyes and Pigments
  • bc0001
Mol File:
130-13-2.mol
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Sodium 4-amino-1-naphthalenesulfonate Chemical Properties

Melting point:
280 °C (dec.)(lit.)
Density 
1.6703
storage temp. 
Store below +30°C.
form 
Crystalline
color 
White to Gray to Brown
PH
6.8-7.0 (10g/l, H2O, 20°C)
Merck 
14,6403
InChIKey
JWSRMCCRAJUMLX-UHFFFAOYSA-M
Dissociation constant
0 at 30℃
CAS DataBase Reference
130-13-2(CAS DataBase Reference)
EPA Substance Registry System
4-Amino-1-naphthalenesulfonic acid sodium salt (130-13-2)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26
WGK Germany 
3
3-8-23
HS Code 
29214500

MSDS

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Sodium 4-amino-1-naphthalenesulfonate Usage And Synthesis

Chemical Properties

grayish white crystalline powder

Uses

Riegler’s reagent for nitrous acid, manufacture of dyestuffs.

Preparation

The preparation of Sodium 4-amino-1-naphthalenesulfonate is as follows:To a suspension of 4-amino-l -naphthalene sulfonic acid (10.Og, 44.8 mmol) in 10 ml MeOH was added 5 N NaOMe (9 ml). The mixture was sonicated to effect complete solution. The solvent was evaporated to provide the sodium salt of -amino-1- naphthalene sulfonic acid as a white solid. This solid was suspended in 100 ml acetic anhydride and heated at 110 °C for 2 1/2 h. Adding some MeOH to the cooled mixture and co-evaporating with 3x100 ml toluene gave the Na-salt of 4-acetamidonaphthalene-l -sulfonic acid as a white powder.

Sodium 4-amino-1-naphthalenesulfonate Preparation Products And Raw materials

Preparation Products

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