Invitrogen™ Yeast RNA (10 mg/mL)

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. This total RNA preparation is supplied in ten 1 mL tubes at a concentration of 10 mg/mL in diethyl pyrocarbonate-treated distilled water. It is typically used at a working concentration of 10 to 20 μg/mL.

What is a Co-precipitant?
Coprecipitants are inert substances used to aid recovery of nucleic acids during alcohol precipitations. While they can be used for precipitating large amounts of nucleic acids, they are essential for quantitative recovery of small amounts of nucleic acids in dilute solutions. Often, the use of such molecules is desirable for no other reason but visualization of the pelleted precipitate after centrifugation.