B Transparent purple
Color masterbatch transparent violet B cas:81-48-1
Chinese alias: 1-hydroxy-4-p-tolylaminopurine, boron reagent; fluorescent violet B; oil soluble violet 401; solvent blue 90; solvent violet 13; disperse blue 72
English name: 1-Hydroxy-4-p-toluidinoanthraquinone
English alias: HPTA, Solvent violet 13
CAS No.: 81-48-1
Molecular formula: C21H15NO3
Molecular weight: 329.35
Melting point: 190-191 ° C
Solvent Violet 13 is a black-purple needle-like crystal. In case of concentrated sulfuric acid, it turns green and becomes purple as the acidity decreases. Soluble in acetone, ethyl acetate, benzene and hot acetic acid, slightly soluble in ethanol, insoluble in water.
Uses: Mainly used for coloring of polyester pulp, and also for preparing masterbatch for polyester.
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