Our company locate Wuxi City.We are leading manufacturers of fluorinated materials, photographic chemicals, polymer stabilizers (light stabilizers, UV absorbers),nucleoside, pharma intermediates, active pharmaceutical ingredients, Activator reagents for oligonucleotide and peptide production. Ligands(Bipyridine) for dye-sensitized solar cell (DSSC). Our strong products have 4,5-Dicaynoimidazole(DCI),5-Ethylthio-1H-tetrazole(ETT),5-Phenyl-1H-tetrazole(5-PT),2-(1-methyl-a-phenylethyl)-5-phenyl-2H-tetrazole(CPT),(S)-(+)-Mandelic acid,(R)-(-)-Miandelic acid,1,3-Dibromo-5,5-Dimethylhydantoin,1-Benzyl-5-Ethoxyhydantoin,1,3-Dimethylbarbituric acid, 4-Fluorobenzaldehyde,4-Fluorophenylhydrazine Hydrochloride,UV-328/UV-369/UV-622/UV-770,CD-1/CD-2/CD-3/CD-4,Ferulic acid,Propylthiouracil,2,4-Dichlorophenyl-imidazole-1yl-ethanol,2,2'-Bipyridine-4,4'-dicarboxylic acid, 4,4'-di-tert-butyl-2,2'bipyridine,etc. See our product list as attachment. New products update on website. We have close cooperation with the Nanjing University, Nanjing University of Technology. We provide custom synthesis. Our factory is strong in developing fluorinated materials, Gridnard reaction and hazardous reactions with Sodium azide. Ligands for dye-sensitized solar cell (DSSC) Since 1994, we get the license to do export business directly. Look forward to your reply and hope to begin business cooperation.