|Product name: |
5-Amino Salicylic Acid
|Molecular Formula: ||C7H7NO3|
|Molecular Structure: |
|Molecular Weight： ||153.135|
|CAS No.: ||89-57-6|
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.
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.
|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.|
|Reducing substances||The solution is blue or violet-brown.|
|Impurity H ||≤0.3%|
|Impurity F ||≤0.1%|
|Impurity J ||≤0.1%|
|Total impurity ||≤0.5%|
|Impurity A ||≤200ppm|
|Loss on drying||≤0.5%|
25kg/ barrel or as customer’s requirements.
Preserve in well-closed container.