Preparation and application of 1-benzothiophene-3(2H)-one_Kain Industrial Additive

background and overview[1] 1-benzothiophene-3(2h)-one is an organic intermediate that can be prepared by reacting 2-carboxymethylthiobenzoic acid as a starting material. it can be used to prepare fluorescent red 5b. fluorescent red 5b is a bluish red oil-soluble solvent pigment with good heat resistance, light resistance, high tinting power and bright color; it can be used…