3-[[2-(Acetyloxy)ethyl][4-[2-(6-nitro-2-benzothiazolyl)diazenyl]phenyl]amino]propanenitrile

Using 2-amino-6-nitrobenzothiazole and N-cyanoethyl-N-acetoxyethylaniline as raw materials, first diazotize 2-amino-6-nitrobenzothiazole, and then diazotize with N- Cyanoethyl-N-acetoxyethyl aniline coupling product. After filtering, grinding and drying, the finished product is obtained. . Add 400g of H3PO4 to the diazotization reaction flask, raise the temperature to 60-65°C, add 2-amino-6-nitrobenzothiazole, stir to dissolve, reduce to room temperature and add 50g of co-solvent, continue to cool to 0-5 ℃, slowly add 12g of NaNO2 within 1-2h, and keep the reaction at 0-5℃ for 3h. Use after destroying excess sodium nitrite. Add 200g of water and 0.2g of dispersant into the coupling reaction flask, add 71g of N-cyanoethyl-N-acetoxyethylaniline in acetic acid solution (50%) with stirring, and after it is fully dispersed, cool to 0℃, add hydrochloric acid 40g, then add the above diazonium liquid dropwise within 1-1.5h, and continue to react at 0-5°C for 10h after the addition. The temperature is raised to 38°C and a certain amount of water is added, then filtered, washed, and dried to obtain a finished product.

Disperse red FRL is mainly used for dyeing and printing of polyester and its blended fabrics, suitable for high temperature and high pressure method and hot melt dyeing. High dyeing intensity, good level dyeing and bright color.

Molecular Weight:438.5
XLogP3:4
Hydrogen Bond Acceptor Count:10
Rotatable Bond Count:9
Exact Mass:438.11102425
Monoisotopic Mass:438.11102425
Topological Polar Surface Area:165
Heavy Atom Count:31
Complexity:700
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes