2-Aminonaphthalene-1-sulfonic Acid (Tobias Acid) CAS 81-16-3 97%

Tobias Acid Chemical name: 2-Aminonaphthalene-1-sulfonic acid CAS NO: 81-16-3 Molecular formula: C10H9NO3S Properties: White Crystal. Melting point 272°C. Difficultly soluble in water, but solubility in hot water....

Product Details

Tobias Acid

Chemical name: 2-Aminonaphthalene-1-sulfonic acid

CAS NO:  81-16-3

Molecular formula:   C10H9NO3S

Structure formula: 

 81-16-3.gif

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:

Items

Quality

Amino value,%

97 min.

Insoluble matter,%

0.1 max.

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