5-Amino Salicylic Acid CAS 89-57-6

5-Amino Salicylic Acid CAS 89-57-6

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Product Details

 

Product name: 

5-Amino Salicylic Acid

Molecular Formula: 
C7H7NO3
Molecular Structure:  
mtxx100
Molecular Weight: 
153.135
CAS No.: 
89-57-6


Description  

5-Amino Salicylic Acid is an almost white or light grey or light pink powder or crystals. It is very slightly soluble in water, practically insoluble in ethanol (96 per cent). It dissolves in dilute solutions of alkali hydroxides and in dilute hydrochloric acid.

 

Application

5-Amino salicylic acid is an important chemical and dye chemical raw material, and also a main raw material for the treatment of chronic colitis drug sulfasalazine, which itself has a similar therapeutic effect. 5-Aminosalicylic acid can be used to produce a variety of reactive dyes of excellent quality in the dye industry because of its three reactive reactive groups of amino, hydroxyl and carboxyl groups.

 

Specification

Appearance
Almost white or light grey or light pink powder or crystals.
Identification
(1) Shows a specific absorption maximum of 430 to 450 at about 230nm.

(2) IR the same as the standard reference.

(3) The principal spot in the chromatogram obtained with the test solution is similar in position, color and size to that with the reference solution.

Appearance of solution
The solution is clear.
Absorbance
A440nm≤0.15

A650nm≤0.10
Reducing substances
The solution is blue or violet-brown.
Related substances:

Impurity G
≤0.05%
Impurity H 
≤0.3%
Impurity E
≤0.05%
Impurity F 
≤0.1%
Impurity J 
≤0.1%
Impurity L
≤0.05%
Impurity M
≤0.05%
Impurity O
≤0.1%
Impurity P
≤0.1%
Impurity R
≤0.05%
Unknown impurity
≤0.05%
Total impurity 
≤0.5%
Impurity A 
≤200ppm
Impurity C
≤200ppm
Impurity K
≤10ppm
Chlorides
≤0.1%
Sulphates
≤200ppm
Loss on drying
≤0.5%
Sulphated ash
≤0.2%
Heavy metals
≤10ppm
Assay
98.5~101.5%


Packing

25kg/ barrel or as customer’s requirements.

 

Storage

Preserve in well-closed container.

 

Minimum Order

One package

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