Product: 2-Aminonaphthalene-1-sulfonic acid (Tobias Acid)
Chemical name: 2-Aminonaphthalene-1-sulfonic acid
CAS NO: 81-16-3
Molecular formula: C10H9NO3S
Structure formula:
Properties:
White Crystal. Melting point 272°C. Difficultly soluble in water, but solubility in hot water. Easily soluble in alkali-creating correspondence sulfonate, then coupling to Lithol scarlet with 2-naphthol.
Application:
Dye intermediates, can be produce J-acid, Lithol Scarlet, Naphthol and Reactive Orange 38, Red 141, 196, 220, etc.
Specification:
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Items
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Quality
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Amino value,%
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97 min.
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Insoluble matter,%
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0.1 max.
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