Aura dTTP (2'-deoxythymidine 5'-triphosphate) is highly stable nucleotide, supplied as 100 mM in 0.1ml of an aqueous solution titrated to pH 7.3-7.5 with NaOH. The nucleotide has greater than 99% purity, is free of nuclease activities, human and E. coli DNA. It is designed for many different molecular biology applications.