Shandong xuchen chemical technology Co,. LTD. is Established in February 2017, xuchen chemical is a major supplier of chemical raw materials and pharmaceutical intermediates based in China.We supply over 100 different Chemical raw material and pharmaceutical intermediates of variety. Main products include :Tetrahydrothiophene/Thiophene CAS Number 110-01-0ï¼›DMP Dimethyl phthalate CAS Number 131-11-3ï¼›Sulfur free odorants/S-Free gas odorants;Dimethyl disulfide DMDS CAS 624-92-0;Dimethyl disulfide DMDS CAS 624-92-0;Trimethylamine oxide dihydrate CAS 62637-93-8 TMAO;Trimethylamine oxide CAS 1184-78-7Â TMAO,etc.