CAS:3271-76-9
Molecular formula:C31H15NO3
Molecular weight:449.46
Properties: Dark grayish green powder. Insoluble in water and ethanol, soluble in pyridine. It is bright yellow and green in concentrated sulfuric acid, and olive green after dilution. It is dark blue in alkaline solution and dark brown in acid solution.
Application: It is mainly used for dyeing and printing of cotton fabrics, and can also be used for dyeing of vitamin / cotton blended fabrics
Structure: