3,3',4,4'-Benzophenonetetracarboxylic dianhydride

LY Global Chemicals Co Ltd.. is a limited liability company specialized in technical research and development, production, development and trade of chemical products. Mainly engaged in the customization and sales of pharmaceutical intermediates, electronic materials, cosmetics raw materials and other fine chemicals. We have many years of export experience, and our customers are all over many countries. Our products are of good quality, competitive price, stable supply, and customers are very satisfied