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≥99% DTNB CAS:69-78-3 5,5'-Dithiobis(2-nitrobenzoic acid)5,5'-Dithiobis(2-nitrobenzoic acid) CAS:69-78-3 or DTNB is a chemical used to quantify the number or concentration of thiol groups in a sample.
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Bis-Tris Propane 99.0% CAS: 64431-96-5 1,3-bis(tris(hydroxymethyl)methylamino)propaneBis-tris propane, or 1,3-bis(tris(hydroxymethyl)methylamino)propane, is a chemical substance that is used in buffer solutions. It is a white to off-white crystalline powder that is soluble in water. It has a wide buffering range, from 6 to 9.5 due to its two pKa values which are close in value. This buffer is primarily used in biochemistry and molecular biology.
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High purity IPTG CAS: 367-93-1 Isopropyl-beta-D-thiogalactopyranosideIsopropyl β-D-1-thiogalactopyranoside (IPTG) is a molecular biology reagent. This compound is a molecular mimic of allolactose, a lactose metabolite that triggers transcription of the lac operon, and it is therefore used to induce protein expression where the gene is under the control of the lac operator.
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High activity Ribonuclease A CAS:9001-99-4 RNase ARNase A is an endoribonuclease that attacks at the 3’OHphosphate of a pyrimidine nucleotide. The sequence of pG-pG-pC-pA-pG will be cleaved to give pG-pG-pCp and A-pG. The highest activity is exhibited with single stranded RNA.
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CHAPS CAS: 75621-03-3 3-((3-Cholamidopropyl)dimethylammonium)-1-propanesulfonateCHAPS is a non-denatured zwitterionic detergent for membrane biochemistry.
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N,N'-Methylenebisacrylamide CAS 110-26-9It is used as chemicals for construction and building materials
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N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid CAS 10191-18-1It is used as a biological buffer
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N,N-bis(4-sulfobutyl)-3-methylaniline,disodium salt CAS 127544-88-1It is used for clinical test and biochemcial experiment.