Biological Buffers/Goods Buffers
Cat. No. Product Name MW pKa (25°C)
pH Range CAS No. Purity 55001 ACES 182.20 6.8 6.1 - 7.5 #7365-82-4 min. 99.0% 55103 AMPD 105.14 8.8 7.8 - 9.7 #115-69-5 min. 99.0% 55104 AMPSO 227.28 9.0 8.3 - 9.7 #68399-791 min. 99.0% 55112 BES 213.25 7.1 6.4 - 7.8 #10191-18-1 min. 99.0% 55113 BES.Na 235.20 9.5 - #66992-27-6 min. 98.0% 55105 Bicine 163.20 8.3 7.6 - 9.0 #150-25-4 min. 99.0% 55107 BIS-Tris 209.24 6.5 5.8 - 7.2 #6976-37-0 min. 99.0% 55108 BIS-Tris-Propane 282.33 6.8 & 9.0 6.3 - 9.5 #64431-96-5 min. 99.0% 55114 CAPS 221.32 10.4 9.7 - 11.1 #1135-40-6 min. 99.0% 55115 CAPSO 237.31 9.6 8.9 - 10.3 #73463-39-5 min. 99.0% 55109 CHES 207.29 9.5 8.6 - 10.0 #103-47-9 min. 99.0% 55116 DIPSO 243.3 7.6 7.0 - 8.2 #68399-80-4 min. 99.0% 55117 G-132 (Glycylglycine) 132.12 3.14 2.5 - 3.8 #556-50-3 min. 99.0% 55030 HEPES 238.2 7.55 6.8 - 8.2 #7365-45-9 min. 99.5% 55031 HEPES.Na 260.28 7.5 - #75277-39-3 min. 99.0% 55110 HEPPS 252.33 8.0 7.6 - 8.6 #16052-06-5 min. 99.0% 55111 HEPPSO 286.33 7.8 7.1 - 8.5 #68399-78-0 min. 99.0% 55035 MES 195.2 6.1 5.5 - 6.7 #4432-31-9 min. 99.5% 55036 MES monohydrate 213.25 6.1 5.5 - 6.7 #145224-94-8 min. 99.5% 55037 MES.Na 217.2 6.1 - #71119-23-8 min. 99.0% 55040 MOPS 209.26 7.2 6.5 - 7.9 #1132-61-2 min. 99.0% 55041 MOPS.Na 231.25 7.2 - #71119-22-7 min. 99.0% 55042 MOPSO 225.3 6.9 6.2 - 7.6 #68399-77-9 min. 99.0% 55175 PIPES 302.27 6.9 6.1 - 7.5 #5625-37-6 min. 99.0% 55176 PIPES.2Na 346.33 6.7 - #76836-02-7 min. 99.0% 55140 TAPS 243.28 8.4 7.7-9.1 #29915-38-6 min. 99.0% 55141 TAPS.Na 265.3 7.4 - #91000-53-2 min. 99.0% 55142 TAPSO 259.28 7.6 7.0 - 8.2 #68399-81-5 min. 99.0% 55180 TES 229.25 7.4 6.8 - 8.2 #7365-44-8 min. 99.0% 55181 TES.Na 251.2 7.4 - #70331-82-7 min. 99.0% 55185 Tricine 179.2 8.1 7.4 - 8.8 #5704-04-1 min. 99.0%