Cato Research Chemicals Inc was founded in the United States. We mainly serve for government agencies, pharmaceutical companies, universities and laboratories worldwide. With more than 20 years of development, we have provided the laboratories in more than 80 countries with more than 8000 kinds of products including various types of standards, chemical synthetic drugs, antibiotics, amino acid derivatives, natural extracts and other reagents. All the products are full-scaled tested with HPLC, GC/LC-MS, NMR, IR spectrum data. No matter where you are, the product will absolutely and positively arrive with no delay; no matter which size you need, we will exert our best effort to make for you.