Other Name: Disperse Blue BBLS, Disperse Blue S-BBL
Molecular Formula:C₂₀H₁₉N₇O₃
Molecular Weight: 405.41
Manufacturing Methods :2,6-Dibromo-4-nitroaniline diazo, and 3-Acetylamino-N,N-diethylaniline coupling, and then replaced with reached bromine atoms.
Properties and Applications:  blue. Dark blue powder. In dyeing copper and iron ions were no change color. Used for polyester and their blended fabric dyeing, the dye color is gorgeous, lifting force is high, the sun and the sublimation fastness are better, and is suitable for high temperature and high pressure, the pure polyester/cotton dyeing and polyester melt knot dyeing, is more sensitive to temperature, hot melt temperature is higher, the color quantity is deep, defect is colored steep curve. For dyed three vinegar fiber an appropriate increase in dyeing temperature, than for polyester a red light. Acrylic dyeing to blu-ray gray. Not dyed acetate fiber and nylon. Can be used to paint acrylic and cellulose triacetate fiber fabric direct printing, discharge printing can also make the background color. Suitable for dyeing and paint superfine printing.