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7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid

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7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid Basic information

Product Name:
7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid
Synonyms:
  • ACETYL J ACID
  • 2-acetylamino-5-hydroxy-7-naphthalenesulfonic acid
  • 2-ACETAMIDO-5-NAPHTHOL-7-SULFONIC ACID
  • 2-ACETAMIDO-5-HYDROXY-7-NAPHTHALENESULFONIC ACID
  • 7-(acetylamino)-4-hydroxy-2-naphthalenesulfonic acid
  • 7-acetamido-4-hydroxynaphthalene-2-sulphonic acid
  • 7-acetamido-4-hydroxynaphthalene-2-sulfonic acid
  • 2-Acetamido-5-naphthol-7-sufonicacid
CAS:
6334-97-0
MF:
C12H11NO5S
MW:
281.28
EINECS:
228-715-5
Mol File:
6334-97-0.mol
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7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid Chemical Properties

Boiling point:
545.86℃[at 101 325 Pa]
Density 
1.581[at 20℃]
vapor pressure 
0Pa at 25℃
Water Solubility 
17.5g/L
LogP
-1.36 at 25℃
CAS DataBase Reference
6334-97-0(CAS DataBase Reference)
EPA Substance Registry System
2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy- (6334-97-0)
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7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid Usage And Synthesis

Chemical Properties

7-Acetamido-4-hydroxynaphthalene-2-sulfonic acid [6334-97-0] N-acetyl J acid, is produced by reaction of the sodium salt of J acid with acetic anhydride in aqueous solution at 20 – 30℃, followed by heating at 95℃ with sodium carbonate to hydrolyze any O-acetyl derivative present (yield 85 %). It is used to produce C.I. Acid Orange 27, C.I. Acid Red 137, and C.I. Direct Red 77.

Flammability and Explosibility

Not classified

7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid Preparation Products And Raw materials

Raw materials

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