TAPS, ULTROL® Grade A zwitterionic buffer useful in the pH range of 7.7-9.1. Has a pKa of 8.3-8.5 at 25°C. 产品信息 Form White solid Molar mass 243.2 Purity >98% by titration Contaminants Heavy metals: ≤2 ppm PKA 8.4 at 20°C Solubility H2O Chemical formula C7H17NO6S CAS number 29915-38-6 商店和运输信息 Storage +15°C to +30°C Ship Ambient Temperature Only Standard Handling