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Heppso sodium CAS:89648-37-3 Ọnụahịa Onye Mmepụta
N-[2-Hydroxyethyl]piperazine-N'-[2-hydroxypropanesulfonic acid] sodium salt bụ kemịkalụ nwere usoro C8H19N2NaO4S. Ọ bụ nnu sodium sitere na piperazine, nke nwere otu ọrụ hydroxyethyl na hydroxypropanesulfonic acid. A na-ejikarị ya eme ihe na ụlọ ọrụ ọgwụ dị ka ihe na-egbochi ihe na ihe na-eme ka ọ kwụsie ike n'ọgwụ. Ihe mejupụtara a na-enyere aka ịnọgide na-enwe pH na nkwụsi ike nke ọgwụ.
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P-NITROPHENYL BETA-D-LACTOPYRANOSIDE CAS:4419-94-7
P-Nitrophenyl beta-D-lactopyranoside, nke a makwaara dị ka PNPG, bụ ihe mejupụtara nke a na-ejikarị eme ihe na nnwale enzymatic iji tụọ ọrụ nke beta-galactosidase, enzyme nke metụtara metabolism carbohydrate. PNPG bụ ihe mejupụtara sịntetik nke enwere ike kewaa site na beta-galactosidase, na-ebute mwepụta nke ngwaahịa agba odo. Enwere ike ịtụle oke hydrolysis nke substrate site na iji spectrophotometric tụọ nnabata nke ngwaahịa ahụ na ogologo ebili mmiri kpọmkwem. Nke a na-enye ndị nchọpụta ohere inyocha ọrụ na kinetics nke beta-galactosidase n'ọtụtụ ọnọdụ, dị ka ịmụ ọrụ enzyme, inyocha maka ndị na-egbochi enzyme ma ọ bụ ndị na-eme ka ihe rụọ ọrụ, ma ọ bụ ịtụle mmetụta nke mgbanwe na ọrụ enzyme.
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popso sesquisodium CAS: 108321-08-0
Nnu Piperazine-N,N'-bis(2-hydroxypropanesulfonic acid) sesquisodium, nke a makwaara dị ka nnu PIPES sesquisodium, bụ ihe mejupụtara kemịkalụ eji eme ihe dị ka ihe nchekwa n'ọtụtụ ọrụ sayensị na ụlọ ọrụ mmepụta ihe. Ọ na-enyere aka ịnọgide na-enwe ọkwa pH kwụsiri ike na ngwọta, ọkachasị na oke pH physiological. A na-ejikarị nnu PIPES sesquisodium eme ihe na mgbasa ozi ọdịbendị sel, biochemistry protein, electrophoresis, usoro bayoloji molekul, na sistemụ nnyefe ọgwụ. Ọ na-arụ ọrụ dị ka ihe na-achịkwa pH na ihe na-eme ka ọrụ enzyme na nkwụsi ike dịkwuo mma, na-eme ka ọ baa uru n'ọtụtụ nyocha na usoro ụlọ ọrụ mmepụta ihe.
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ACES CAS:7365-82-4 Ọnụahịa Onye Mmepụta
N-(2-Acetamido)-2-aminoethanesulfonic acid, nke a makwaara dịka ACES, bụ ihe a na-ejikarị eme ihe n'ime nnyocha sayensị. Ọ na-enyere aka ịnọgide na-enwe pH kwụsiri ike na mmiri ma na-agbaze nke ukwuu na mmiri. ACES nwere obere nsí na obere nnyonye anya na usoro biochemical, nke na-eme ka ọ dabara adaba maka ọtụtụ ojiji. A na-ejikarị ya eme ihe dị ka ihe nchekwa na ọmụmụ ihe na-eme ka protein sie ike na nnwale enzyme, ebe ọ na-edobe ọnọdụ kacha mma maka nhazi protein na ọrụ enzyme.
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Phenylgalactoside CAS:2818-58-8
Phenylgalactoside, nke a makwaara dị ka p-nitrophenyl β-D-galactopyranoside (pNPG), bụ ihe e ji emepụta ihe nke a na-ejikarị eme ihe na nnwale bayoloji na nke molekul. A na-ejikarị ya achọpụta ma tụọ ọrụ nke enzyme β-galactosidase.
Mgbe β-galactosidase na-eme ka phenylgalactoside dị na mmiri, ọ na-ewepụta p-nitrophenol, nke bụ ihe mejupụtara agba odo. Enwere ike iji spectrophotometer tụọ ntọhapụ nke p-nitrophenol n'ọtụtụ, ebe ọ bụ na enwere ike ịchọpụta mmịpụta nke p-nitrophenol na ogologo ebili mmiri nke 405 nm.
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DIPSO CAS:68399-80-4 Ọnụahịa Onye Mmepụta
DIPSO na-anọchite anya "Diisopropyl azodicarboxylate," nke bụ ihe a na-ejikarị eme ihe na kemịkalụ organic. A na-ejikarị ya eme ihe na mmeghachi omume Mitsunobu, nke bụ ụzọ maka ịtụgharị mmanya ka ọ bụrụ otu ọrụ dị iche iche dịka esters, ethers, ma ọ bụ amines. DIPSO na-arụ ọrụ dị ka isi iyi nke etiti na-emeghachi omume nke ukwuu nke a na-akpọ azodicarboxylate, nke na-eme ka mgbanwe a dị mfe.
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4-Nitrophenyl-beta-D-glucopyranoside CAS:2492-87-7
4-Nitrophenyl-beta-D-glucopyranoside bụ ihe a na-ejikarị eme ihe na nnwale kemịkalụ iji chọpụta ọrụ nke enzymes dị ka β-glucuronidase. enzyme ahụ na-eme ka ngwakọta a dị na mmiri mmiri, na-ebute mwepụta nke 4-nitrophenol, nke enwere ike ịtụ site na iji spectrophotometry. Ojiji ya na-enyere ndị nchọpụta aka ịmụ akụkụ dị iche iche nke metabolism ọgwụ, toxicology, na nchọpụta ahụike metụtara mmeghachi omume glucuronidation.
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Tris maleate CAS:72200-76-1
Tris maleate bụ ihe mejupụtara kemịkalụ nke na-eje ozi dị ka ihe nchekwa pH na ihe na-edozi pH n'ọtụtụ ụlọ ọrụ dị iche iche. A na-eji ya maka ịnọgide na-enwe ọkwa pH kwụsiri ike na iguzogide mgbanwe ndị sitere na mgbakwunye nke asịd ma ọ bụ ntọala. A na-ejikarị Tris maleate eme ihe na nyocha biochemical, nhicha protein, usoro ụlọ ọrụ mmepụta ihe, na kemistri nyocha. Ọ dị irè karịsịa na nchekwa na ọkwa pH dị ala ma a maara ya maka ọtụtụ ihe dị iche iche ọ na-eme iji nọgide na-enwe ọnọdụ pH kacha mma.
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MOBS CAS:115724-21-5 Ọnụahịa Onye Mmepụta
4-morpholin-4-ylbutane-1-sulfonic acid, nke a makwaara dị ka MOBS, bụ ihe mejupụtara ihe ndị e ji emepụta ihe nke e ji eme ihe n'ime nnyocha ihe ndị dị ndụ na ihe ndị dị ndụ. Ọ kwụsiri ike ma nwee ike idobe pH kwụsiri ike n'etiti oke alkaline na nke na-anọpụ iche.BA na-ejikarị S eme ihe n'ọdịbendị mkpụrụ ndụ, nnwale enzyme, usoro bayoloji molekul, na electrophoresis. Ọ dakọtara na ọtụtụ ihe ndị na-emepụta ihe ma mara ya maka nkwụsi ike ya na iguzogide mgbanwe okpomọkụ na pH.
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1,2,3,4,6-penta-O-acetyl-alpha-D-galactopyranose CAS:4163-59-1
1,2,3,4,6-penta-O-acetyl-alpha-D-galactopyranose bụ kemịkalụ nke sitere na ezinụlọ carbohydrates. Ọ bụ ihe sitere na alpha-D-galactopyranose, shuga sitere n'okike. Ngwakọta a kpọmkwem nwere otu acetyl ise ejikọtara na otu hydroxyl kpọmkwem na molekul shuga. A na-ejikarị ya eme ihe n'ọtụtụ ọgwụ kemịkalụ na ọgwụ, gụnyere dị ka ihe mmalite maka njikọta nke ihe ndị ọzọ. Ụdị acetylated ya na-eme ka iguzosi ike na mmeghachi omume ya dịkwuo mma, na-eme ka ọ bụrụ ihe bara uru na kemịkalụ organic.
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POPSO CAS:68189-43-5 Ọnụahịa Onye Mmepụta
POPSO, nke a na-akpọ Piperazine-N,N'-bis(2-hydroxypropanesulfonic acid) sesquisodium salt, bụ ihe na-egbochi ihe nchekwa nke a na-ejikarị eme nchọpụta bayọlọji na biochemical. Ọ na-enyere aka ịnọgide na-enwe ọkwa pH kwụsiri ike na ngwọta, karịsịa n'ime oke pH physiological. A na-eji PIPES sesquisodium nnu eme ihe na omenala sel, protein biochemistry, electrophoresis, usoro bayoloji molekul, sistemụ nnyefe ọgwụ, na ihe ndị ọzọ. Ike ya ịchịkwa pH na-eme ka ọ bụrụ ngwaọrụ bara uru na nyocha na ngwa ụlọ ọrụ dị iche iche.
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BES CAS:10191-18-1 Ọnụahịa Onye Mmepụta
N,N-Bis(hydroxyethyl)-2-aminoethanesulfonic acid, nke a makwaara dị ka BES ma ọ bụ N,N-Bis(2-hydroxyethyl)aminoethanesulfonic acid, bụ kemịkalụ a na-ejikarị eme ihe dị ka ihe nchekwa n'ọtụtụ ọrụ sayensị na ụlọ ọrụ mmepụta ihe.
BES bụ ihe mejupụtara zwitterionic, nke pụtara na o nwere ma chajị dị mma ma nke na-adịghị mma n'ime nhazi ya. Ihe onwunwe a na-enye ya ohere ịnọgide na-enwe pH kwụsiri ike na ngwọta.
BES nwere uru pKa nke dị ihe dịka 7.4, nke na-eme ka ọ baa uru karịsịa maka nchekwa na ọkwa pH nke anụ ahụ. A na-ejikarị ya eme ihe na nnwale bayọlọjik na nke kemịkalụ, dịka nhicha protein, mmeghachi omume enzyme, na ọdịbendị sel, ebe idobe pH kpọmkwem dị oke mkpa.
Ọzọkwa, a na-ejikarị BES eme ihe n'ọtụtụ usoro electrophoresis, ebe ọ na-enyere aka ịnọgide na-enwe pH dị mkpa maka nkewa na nyocha nke biomolecules chajị, dị ka protein na nucleic acid.
