2'-deoxy-5-[9-(3-{[4-(diethylamino)-4-oxobutanoyl]amino}propyl)-18-ethyl-5,8,14,17-tetraoxo-4,9,13,18-tetraazaicos-1-yn-1-yl]uridine 5'-(tetrahydrogen triphosphate)

P19821 — DNA polymerase I, thermostable