10 mM Stabilized dNTP mix (HS dNTP Mix) is suitable for use in PCR, sequencing, nick translation, fill-in, cDNA synthesis, TdT tailing reactions, and dilution of radiolabeled dNTPs. These nucleotides are supplied as convenient, ready-to-use solutions at a concentration of 10 mM in Tris-HCl (pH 7.5). The 10 mM HS dNTP Mix contains all four dNTPs, each at a final concentration of 10 mM. 10 mM HS dNTP Mix also contains a stabilizer, which makes it a very long-lasting tool. If stored at 37°C for one week, its activity does not decrease.