Each siMAX siRNA duplex is provided as a quality-assured siRNA duplex with a purity level of 85% or greater. The siRNA duplex is composed of the "sense" (or "passenger") strand and the "antisense" (or"guide") strand. After passing all quality control tests, we deliver either 20 or 40 nmoles of both the sense and antisense RNA oligos that are placed into a tube, annealed, and then shipped as dried material to your lab. We have also provided a wide range of dinucleotide overhangs, that can be used in the siRNA.