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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 HTBA CAS:53279-72-4 3-Hydroxy-2,4,6-triiodobenzoic acid3-Hydroxy-2,4,6-triiodobenzoic acid CAS NO:53279-72-4,usually called HTBA. It's a kind of diagnostic reagent
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Sodium nitroferricyanide(III) dihydrate CAS 13755-38-9Used as a reagent for testing aldehydes, acetone, sulfur dioxide, zinc, alkali metals, sulfides, etc.
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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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5’,5’’-Dinitro-3’,3’’-diiodo-3,4,5,6-trtrabromophenol-sulfonephthalein CAS 145551-16-2It is used as a test reagent.
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Streptavidin CAS 9013-20-1It is a crystalline protein isolated from the bacterium Streptomyces avidinii and possesses biotin-binding ability.
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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.
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N,N'-Carbonyldiimidazole CAS 530-62-1It is used as a condensing agent for synthesizing triphosphate nucleosides, peptides, and esters