we are a manufacturer of chemical intermediates, chemical addictives and auxiliarys.such as: CAS No.111-19-3 Sebacoyl Chloride23220-52-2 meso-2, 3-Diaminosuccinic acid110-18-9 N, N, N', N'-Tetramethylethylenediamine110-70-3 N, N'-Dimethylethylenediamine 3030-47-5 1, 1, 4, 7, 7-Pentamethyldiethylenetriamine 108-43-0 3-Chlorophenol 80-73-9 1, 3-Dimethyl-2-imidazolidinone1852-16-0 N-(butoxymethyl)acrylamide37721-71-4 2, 4, 6-Tribromophenyl methacrylate19485-03-1 1, 3-Butanediol diacrylate 89-01-0 Pyrazine-2, 3-dicarboxylic acid 527-76-4 4-Amino-2-sulfobenzoic acid 552-23-8 2-Nitro-4-sulfobenzoic acid5344-48-9 4-Nitro-2-sulfobenzoic acid121-47-1 Metanilic acid95-23-8 5-Aminobenzoimidazolone1740-54-1 Sebacamide1189-08-8 1, 3-Butylene glycol Dimethacrylate1070-70-8 1, 4-Butylene glycol diacrylate2082-81-7 1, 4-Butanediol dimethacrylate 3971-29-7 1, 2-Cyclohexanedimethanol 3971-28-6 1, 3-Cyclohexanedimethanol26680-54-6 Octenylsuccinic anhydride25377-73-5 Dodecenyl succinic anhydride29658-97-7 Dodecenyl succinic acid 2561-85-5 n-Dodecylsuccinic anhydride352-87-4 2, 2, 2-Trifluoroethyl methacrylate 407-47-6 2, 2, 2-Trifluoroethyl acrylate 924-42-5 N-methylolacrylamide101-43-9 Cyclohexyl methacrylateCAS 80-4-6 Hydrogenated Bisphenol-A12224-06-5 Fluorescent brightener 8516090-02-1 Fluorescent brightener 71 16470-24-9 Fluorescent brightener 220 1325-37-7 Direct Yellow 11