PRO-GREEN TECH - The Green Chemical Technology

Thermal Dye

Thermal Dye

Manufacture of the thermal dye

PRO-GREENTECHNOLOGIES, LTD has not only developed PGT-TD(Thermal Dye) as a major material of the thermal paper, but also ANMT and BBA as intermediates of the thermal dye. PGT-TD has been synthesized by condensation & cyclization under the strong acid conditions.
We were explored a mass production technology to refine. In addition, the final product of high quality was manufactured through PGTech® purification.

Our main technology includes PGTech® purification, Halogenation, Ullmann reaction(nucleophilic aromatic substitution reaction using copper catalysts), O-alkylation, N-alkylation, Friedel-Crafts reaction, etc.


Applicable Product

Product name CAS No.Structure
2-Anilino-6-(dibutylamino)-3-methylfluoran 89331-94-2timg_bb_01.gif
4-Methoxy-2-methyl Diphenylamine 41317-15-1timg_bb_01.gif
2-[4-(Dibutylamino)-2-hydroxybenzoyl]benzoic acid 54574-82-2timg_bb_01.gif
3-(Dibutylamino)phenol 43141-69-1timg_bb_01.gif
3-Butylaminophenol 58494-81-8timg_bb_01.gif
3-Butyl(ethyl)aminophenol 92601-64-4timg_bb_01.gif
3-Methylanisole 100-84-5timg_bb_01.gif
4-Bromo-3-methylanisole 27060-75-9timg_bb_01.gif
6'-(ethyl(isopentyl)amino)-3'-methyl-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one 70516-41-5timg_bb_01.gif