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Solvent violet 13

Product name HPTA,Solvent violet 13
CAS NO. 81-48-1
Molecular formula C21H15NO3
Molecular weight 329.35
Product Features Solvent Violet 13 is a black-purple needle-like crystal. It turns green when it comes to concentrated sulfuric acid, and turns purple as the acidity decreases. Soluble in acetone, ethyl acetate, benzene and hot acetic acid, slightly soluble in ethanol, insoluble in water.
Uses It is used as a smart enzyme reagent for the determination of boron. It is mainly used for the coloring of pure pulp of polyester fiber, and can also be used to prepare master batches for polyester.

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