UltraPure™ Buffer-Saturated Phenol is used in the purification of nucleic acids. The reagent, which consists of UltraPure™ Phenol that has been saturated with Tris-HCl buffer, is already buffer equilibrated to pH >7.4.
Purified Torulla Invitrogen yeast RNA is suitable as a coprecipitant in nucleic acid precipitations. It cannot be used in reactions inhibited by exogenous RNA, and it is the most inexpensive source of a high-quality coprecipitant.