Chromatographically purified. A lyophilized powder containing glycine as a stabilizer. Contains 0.0005% RNase. Store at 2-8C. Protect from moisture. Bovine pancreatic deoxyribonuclease is an endonuclease which splits phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide yielding polynucleotides with free hydroxyl group at the 3' position and phosphate group at the 5' position. The average chain length of a limit digest is a tetranucleotide.