1-Napthylamine-4-sulfonic acid

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Product Name:?1-Napthylamine-4-sulfonic acid
Chemical Name: Naphthionate
:?1,4-Naphthionic acid;1,4-naphthionic acid;1-Aminonaphthalene-4-sulfonic acid;1-aminonaphthalene-4-sulfonic acid; 1-Napthylamine-4-sulfonic acid;4-amino-1-naphthalenesulfonic acid;alpha-Naphthylamine-p-sulfonic acid
CAS No:?84-86-6
: Dyes Intermediate

Descriptions of 1-Napthylamine-4-sulfonic acid?:

Needle crystal.
The relative density of 1.673 (25/4 ℃)
Slightly soluble in water, with blue fluorescence.
Sodium salt soluble in water.


It is an important dye intermediate. It is used to produce Acid Red A, B, Acid Red 3R, Direct Red 4B, Direct Red Jujube GB, Direct Bauhin B and so on. It is also used to produce 1-naphthol-4-sulfonic acid and other intermediates.

Storage: Storage should be cool and ventilated, away from heat, fire, to prevent sun exposure, heat is strictly prohibited.
Package:?25kg PP bag for solid powder. 200L or 250KG Drum for Liquid.

Specifications of 1-Napthylamine-4-sulfonic acid:

Appearance White to light yellow powder
Content ≥74%
Moisture ≤0.1%
Insoluble ≤0.1%
Melting point n/a
Package 25KG/Bag

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