大量优惠供应dUTP

Product : 2’-Deoxyuridine-5’-Triphosphate, Sodium Salt (dUTP) Sequenase and PCR Qualified Storage Recommendations: Always avoid freeze-thaw cycles or exposure to frequent temperature changes. These fluctuations can greatly alter product stability. Long term (Infrequent use: 1-2 times per month): -70oC Daily/Weekly use: -20oC Molecular Formula: C9H11N2O14P3Na4 Molecular Weight: 556.1 Form: Aqueous solution, 100mM Purity (HPLC): >99.8% λmax: 267nm+2nm Absorbance Rations (pH 7.0): A250/A260 0.73+0.03   A280/A260 0.38+0.03 PH: 7.5 ± 0.1 Quality control: 1. The concentration is verified by optical density spectrophotometry.   2. This preparation is free of DNase and RNase contamination as determined by incubation of the 4 dNTPs with radioactive substrates.   3. The purity of this preparation is determined by HPLC. The minimum passing specification for the triphosphate content is 99.8%.   4. This lot of dNTPs has been performance tested with Sequenase, Taq DNA polymerase, Pfu DNA polymerase and T7 DNA polymerase.   　上海闪晶分子生物科技有限公司 地址：上海市宜山路705号C座6楼 邮编：200233 电话：64858053  800-988-1995 E-mail:master@shinegene.org.cn 网址：http://www.shinegene.org.cn/2004/shsj.html#b