Chemicals for use in scientific and medical research preparations, namely, DNA, cDNA, C DNA library, RNA, c DNA fragment, protein expression reagents, chromatography chemicals; RNAi reagents used in life science research and development, not for diagnostic use; Diagnostic reagents for scientific use in the nature of cloning polymerase chain reaction (PCR) products, namely, enzymes being stabilizers and substrates, buffers, nucleotide arrays and primers; small interfering RNA (siRNA) reagents ...