Product: J Acid
Chemical name: 2-Naphthylamine-5-Hydroxy-7-Sulfonic Acid
CAS NO: 87-02-5
Molecular formula: C10H9NO4S
Structure formula:

Properties:
Grey powder. Difficultly soluble in water. Easily soluble in alkali-creating correspondence salt. The liquid of its’ sodium salt is blue fluorescence.
Application:
Dye intermediates, used for production many dyestuffs as the material, such as direct copper blue 151,direct scarlet 23, reactive brown K3R, phenyl J-acid and Bis-J-acid.
Specification:
Items
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Quality
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Coupling value,%
|
90 min.
|
Insoluble matter,%
|
0.1 max.
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Gama acid,%
|
1 max.
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|