1. Product advantages

♦ High purity, all above 98.5%, no impurities after dissolution

♦ We will test each batch to ensure quality

♦ OEM and private brand services designed for free

♦ Various cap colors available

♦ We can also provide MT1 peptide powder

2. Factory advantages

♦ Professional research team

♦ More than 5 doctors in high-tech R&D laboratories

♦ More than 1000 m2 of factory production line to ensure stable supply

♦ More than 1200 factories to manufacture products and control quality

3. Service advantages

♦ 24-hour online service

♦ Track package information and update it for customers

♦ Professional sales team

♦ Accept small order service

♦ Redelivery service if detained by customs

Chemical properties ：

Red powder. Insoluble in water

Purpose：

 Disperse Red BRE is mainly used for dyeing polyester and its blended fabrics. It is suitable for dyeing by carrier method, high temperature and high pressure method and hot melt method. Dye polyester yellow and bright red. It can also be used for printing polyester, acetate, triacetate and polyamide fabrics. Bright color, good evenness, good dyeing fastness.

The production method：

uses p-nitroaniline and m-(benzoylamino-N, n-diacetoxyethyl) aniline as raw materials. First, the former is diazotized, and then the latter is coupled to obtain the product. The e finished product is filtered, crushed and dried. Add 54g hydrochloric acid (30%) and 30mL water into the diazotization reaction bottle, stir and heat up to 60-65℃, add 69g p-nitroaniline to dissolve it. Then the temperature was lowered to 30-40℃, and additives were added: 5gPC powder and 10gTX-10. The Chemicalbook was further lowered to 0-5℃, and 8g sodium nitrite was added by drops, which was finished at 1-1.5h. Continue stirring for 2.5 hours to obtain diazo solution. Add 150mL water and 110g m (benzoylamino-N, n-diacetylxyethyl) aniline into the coupling reaction bottle, cool to 0℃, add concentrated H2SO4 to dissolve it, then add the above diazo solution by drops, add it within 1-2h, and continue stirring for 10-12h. Water replenishment, temperature rise to 45-50℃, filter, wash, dry finished products.