The Ambion™ RNA Control 250 provides a precise, accurate, and reproducible RNA concentration reference for use in conjunction with NanoDrop™ Spectrophotometers. It is provided in two tubes containing 20 μL each.

• A stable, highly pure transcript at a precisely known concentration
• Used to verify the accuracy of NanoDrop™ Spectrophotometer measurements
• Provided with THE RNA Storage Solution for blank measurements
• Enough for 20 measurements

RNA Control 250 consists of a single, ultra-pure, 2000 nt RNA transcript of a precisely defined sequence, molecular weight, and concentration. It is packaged in special non-stick tubes and includes the Ambion™ THE RNA Storage Solution. The RNA Control 250 will maintain ± 5% of stated concentration and >85% RNA integrity through 5 freeze/thaw cycles (10 duplicate measurements).