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2,3,4,6-TETRA-O-BENZOYL-ALPH-D-GLUCOPYRANOSYL BROMIDE CAS: 14218-11-2
2,3,4,6-Tetra-O-benzoyl-alpha-D-glucopyranosyl bromide yog ib qho tshuaj sib xyaw uas muaj nyob rau hauv chav kawm ntawm cov piam thaj derivatives.Nws muaj cov piam thaj molecule nrog plaub pawg benzoyl txuas rau nws pawg hydroxyl, nrog rau bromide atom ntawm txoj haujlwm anomeric.
Cov tshuaj no feem ntau yog siv rau hauv cov organic thiab tshuaj chemistry ua ib pab pawg tiv thaiv rau hydroxyl functionality ntawm qabzib.Cov pab pawg benzoyl ua haujlwm rau daim npog qhov ncauj ib ntus rau cov pab pawg hydroxyl reactive, ua rau lawv tsis tshua muaj kev cuam tshuam rau cov tshuaj tsis haum tshuaj thaum lub sijhawm ua cov txheej txheem hluavtaws.Qhov no tso cai rau kev xaiv ua haujlwm ntawm cov pab pawg hydroxyl tshwj xeeb hauv cov piam thaj derivatives.
Tsis tas li ntawd, benzoyl-tiv thaiv cov piam thaj derivatives tuaj yeem siv los ua lub tsev thaiv rau kev sib txuas ntawm ntau yam glycosides thiab glycoconjugates.Glycosides yog cov tebchaw tsim los ntawm kev sib txuas ntawm cov piam thaj molecule mus rau lwm qhov moiety, xws li cov tshuaj lossis cov khoom siv ntuj tsim, thiab lawv pom cov ntawv thov hauv kev tsim tshuaj thiab tshuaj lom neeg biology.
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POPSO CAS: 68189-43-5 Chaw tsim tshuaj paus Nqe
POPSO, luv luv rau Piperazine-N, N'-bis (2-hydroxypropanesulfonic acid) sesquisodium ntsev, yog ib tug buffering neeg sawv cev uas feem ntau siv nyob rau hauv kev tshawb fawb lom thiab biochemical.Nws pab tswj cov qib pH ruaj khov hauv cov kev daws teeb meem, tshwj xeeb tshaj yog nyob rau hauv lub cev pH ntau.PIPES sesquisodium ntsev yog siv rau hauv kab lis kev cai ntawm tes, protein biochemistry, electrophoresis, molecular biology cov txheej txheem, kev xa tshuaj, thiab lwm yam.Nws lub peev xwm los tswj pH ua rau nws muaj txiaj ntsig zoo hauv ntau yam kev tshawb fawb thiab kev siv hauv kev lag luam.
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BES CAS: 10191-18-1 Chaw tsim tshuaj paus Nqe
N, N-Bis (hydroxyethyl)-2-aminoethanesulfonic acid, tseem hu ua BES los yog N, N-Bis (2-hydroxyethyl) aminoethanesulfonic acid, yog ib tug tshuaj compound uas feem ntau siv los ua ib tug buffering neeg sawv cev nyob rau hauv ntau yam scientific thiab industrial daim ntaub ntawv. .
BES yog ib tug zwitterionic compound, txhais tau tias nws muaj ob qho tib si zoo thiab tsis zoo nqi nyob rau hauv nws cov qauv.Cov cuab yeej no tso cai rau nws kom tswj tau qhov pH ruaj khov hauv kev daws teeb meem.
BES muaj pKa tus nqi ntawm kwv yees li 7.4, ua rau nws tshwj xeeb tshaj yog pab tau rau buffering ntawm physiological pH theem.Nws feem ntau yog siv rau hauv kev sim tshuaj lom neeg thiab biochemical, xws li kev ua kom huv ntawm cov protein, cov tshuaj tiv thaiv enzyme, thiab kab lis kev cai ntawm tes, qhov uas tswj hwm pH tshwj xeeb yog qhov tseem ceeb.
Tsis tas li ntawd, BES tau siv dav hauv cov txheej txheem electrophoresis, vim nws pab tswj cov pH tsim nyog rau kev sib cais thiab kev tsom xam ntawm cov khoom siv biomolecules, xws li cov protein thiab nucleic acids.
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2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl 2,2,2-trichloroacetimidate CAS: 86520-63-0
2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl 2,2,2-trichloroacetimidate yog cov tshuaj sib xyaw uas nquag siv hauv cov tshuaj carbohydrate thiab glycosylation cov tshuaj tiv thaiv.Nws yog ib qho derivative ntawm α-D-galactopyranose, ib hom suab thaj, qhov twg hydroxyl pawg ntawm 2, 3, 4, thiab 6 txoj haujlwm ntawm lub nplhaib galactopyranose yog acetylated.Tsis tas li ntawd, cov anomeric carbon (C1) ntawm cov suab thaj muaj kev tiv thaiv nrog ib pawg trichloroacetimidate, uas ua rau nws muaj zog electrophile thaum lub sij hawm glycosylation cov tshuaj tiv thaiv.
Cov compound feem ntau yog siv los ua tus neeg saib xyuas glycosylating los qhia galactose moieties rau hauv ntau lub molecules, xws li cov proteins, peptides, lossis cov organic molecules me me.Qhov no tuaj yeem ua tiav los ntawm kev ua cov tshuaj no nrog cov nucleophile (piv txwv li, hydroxyl pawg ntawm lub hom phiaj molecule) nyob rau hauv cov xwm txheej tsim nyog.Cov pab pawg trichloroacetimidate pab txhawb kev sib txuas ntawm galactose moiety rau lub hom phiaj molecule, uas ua rau tsim ib daim ntawv cog lus glycosidic.
Cov tshuaj no feem ntau siv rau hauv kev sib txuas ntawm glycoconjugates, glycopeptides, thiab glycolipids.Nws muaj ntau txoj hauv kev thiab ua tau zoo rau kev hloov pauv cov molecules nrog cov galactose residues, uas tuaj yeem cuam tshuam rau ntau yam, suav nrog kev tshawb fawb txog roj ntsha, kev xa tshuaj, lossis kev tsim tshuaj tiv thaiv.
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3- (N, N-dimethyldodecylammonio) propanesulfonate CAS: 14933-08-5
N-(2-Aminoethyl) morpholine, tseem hu ua AEM, yog cov tshuaj sib xyaw nrog cov qauv kab.Nws muaj lub nplhaib morpholine nrog ib pawg aminoethyl txuas rau ib qho ntawm nws cov nitrogen atoms.AEM yog cov kua xim tsis muaj xim nrog cov yam ntxwv tsw.
AEM pom daim ntawv thov hauv ntau yam kev lag luam.Nws feem ntau yog siv los ua cov kuab tshuaj rau cov organic tebchaw vim nws cov kuab tshuaj zoo heev.Tsis tas li ntawd, AEM ua raws li kev tiv thaiv corrosion hauv kev lag luam uas cuam tshuam nrog kev tu hlau, roj thiab roj ntau lawm, thiab kev kho dej.Nws pab tiv thaiv cov hlau los ntawm xeb thiab corrosion.
Tsis tas li ntawd, AEM ua haujlwm ua cov tshuaj nruab nrab rau kev sib txuas ntawm cov tshuaj, agrochemicals, thiab tshuaj tshwj xeeb.Nws yog ua hauj lwm nyob rau hauv polymer additives los txhim kho cov nplaum cov khoom ntawm coatings, adhesives, thiab sealants.AEM kuj tseem siv los ua pH adjuster lossis buffering tus neeg sawv cev hauv qee cov txheej txheem kev lag luam.
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MES monohydrate CAS 145224-94-8
MES monohydrate yog hydrated daim ntawv ntawm 4-Morpholineethanesulfonic acid (MES), ib tug buffering neeg sawv cev uas nquag siv nyob rau hauv lom thiab biochemical kev tshawb fawb.Nws yog cov hmoov dawb crystalline uas yog soluble hauv dej thiab muaj pKa tus nqi nyob ib ncig ntawm 6.1.MES monohydrate paub txog nws lub peev xwm los tswj cov pH ruaj khov nyob rau hauv thaj tsam ntawm 5.5 txog 6.7, ua rau nws haum rau ntau yam kev siv xws li kev tshawb fawb enzyme, protein purification, gel electrophoresis, kab lis kev cai ntawm tes, thiab tshuaj lom neeg.Nws versatility thiab compatibility nrog biological systems ua rau nws yog ib qho tseem ceeb nyob rau hauv ntau yam kev sim thiab cov txheej txheem.
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beta-d-glucose pentaacetate CAS: 604-69-3
Beta-D-glucose pentaacetate yog cov tshuaj sib xyaw ua ke uas tau los ntawm cov piam thaj, cov suab thaj yooj yim.Nws yog tsim los ntawm acetylating qabzib nrog tsib pawg acetyl, uas ua rau muaj kev sib txuas ntawm cov pab pawg no rau pawg hydroxyl (OH) uas muaj nyob hauv cov piam thaj molecule.Qhov kev hloov pauv ntawm cov piam thaj no ua rau nws txhim kho kev ruaj ntseg thiab ua rau nws soluble hauv cov kuab tshuaj organic.
Beta-D-glucose pentaacetate muaj ntau yam kev siv hauv thaj chaw ntawm cov organic chemistry, tshwj xeeb tshaj yog nyob rau hauv kev sib txuas thiab kev hloov pauv ntawm carbohydrates.Nws tuaj yeem ua haujlwm ua ntej lossis nruab nrab hauv kev npaj ntawm lwm cov carbohydrate derivatives lossis complex organic compounds.Tsis tas li ntawd, nws tau siv nyob rau hauv qee qhov kev siv tshuaj kho mob thiab tshuaj xws li kev xa tshuaj thiab kev tswj cov qauv tsim tawm.
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Tris-HCl CAS: 1185-53-1 Chaw tsim tshuaj paus Nqe
Tris-HCl, tseem hu ua Tris hydrochloride, yog ib qho kev siv tshuaj lom neeg tsis zoo hauv ntau daim ntawv thov.Nws yog kev sib xyaw ntawm Tris (tris (hydroxymethyl) aminomethane) thiab hydrochloric acid.Qhov tsis muaj qhov system no muaj txiaj ntsig zoo hauv kev tswj hwm thaj chaw pH ruaj khov, tshwj xeeb hauv thaj tsam ntawm pH 7-9.Tris-HCl yog dav siv nyob rau hauv molecular biology cov tswv yim, protein biochemistry, enzymology, thiab lwm yam kev siv biochemical.Nws pab tswj cov pH zoo tshaj plaws uas yuav tsum tau ua rau cov txheej txheem no, ua kom muaj kev ruaj ntseg thiab kev ua haujlwm ntawm cov proteins, enzymes, thiab nucleic acids.Tris-HCl muaj nyob rau hauv ntau hom, xws li hmoov los yog concentrated tov, ua rau nws yooj yim rau kev npaj thiab siv nyob rau hauv ntau yam chaw kuaj.
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N-ethyl-N-(3-sulfopropyl)-M-anisidinesodium CAS: 82611-88-9
N-Ethyl-N-(3-sulfopropyl)-3-methoxyaniline sodium ntsev yog cov tshuaj sib xyaw uas muaj N-ethyl pawg, sulfopropyl pawg, thiab 3-methoxyaniline pawg.Nws feem ntau tshwm sim raws li sodium ntsev, uas txhim kho nws cov solubility hauv dej.
Qhov kev sib xyaw no muaj ntau yam kev siv hauv kev lag luam thiab kev tshawb fawb.Nws tuaj yeem siv los ua cov xim nruab nrab, catalyst, lossis ua cov reagent hauv organic synthesis.Nws cov khoom, xws li solubility, stability, thiab reactivity, ua rau nws haum rau tej daim ntaub ntawv nyob rau hauv ntau yam teb.
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2-NAPHTHYL-BETA-D-GALACTOPYRANOSIDE CAS TSIS TAU: 312693-81-5
2-NAPHTHYL-BETA-D-GALACTOPYRANOSIDE yog ib qho tshuaj lom neeg uas nquag siv hauv kev tshawb fawb thiab tshuaj xyuas biochemical.Nws yog ib qho derivative ntawm galactose, ib hom suab thaj.Lub compound feem ntau yog siv los ua lub substrate rau kev kuaj xyuas cov haujlwm ntawm beta-galactosidase, ib qho enzyme uas muaj nyob rau hauv ntau yam kab mob, nrog rau cov kab mob.Thaum muaj beta-galactosidase, nws cleaves 2-NAPHTHYL-BETA-D-GALACTOPYRANOSIDE rau hauv naphthol thiab galactose.Qhov tshwm sim naphthol molecule tuaj yeem pom tau yooj yim los ntawm nws qhov nqus ntawm ultraviolet lub teeb, tso cai rau cov kws tshawb fawb los ntsuas cov haujlwm ntawm beta-galactosidase.Qhov kev ntsuam xyuas no feem ntau yog siv rau hauv molecular biology thiab kev tshawb fawb noob caj noob ces, rau kev siv xws li kev kawm txog noob caj noob ces, kev qhia cov protein, thiab cell viability.
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TOOS CAS: 82692-93-1 Chaw tsim tshuaj paus Nqe
Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonate yog ib qho tshuaj lom neeg feem ntau hu ua MESNa.Nws feem ntau yog siv los ua tus neeg sawv cev txo qis hauv biochemistry thiab molecular biology.MESna muaj peev xwm ua kom tawg disulfide bonds hauv cov proteins, hloov mus rau sulfhydryl pawg.Qhov kev txo qis no yog qhov tseem ceeb rau ntau yam kev siv xws li protein denaturation, tiv thaiv kev sib sau ua ke ntawm cov protein, cov ntawv lo rau cov protein, thiab cov protein refolding.MESNa ua lub luag haujlwm tseem ceeb hauv kev tswj hwm cov protein, tshuaj xyuas, thiab hloov kho hauv kev tshawb fawb tshawb fawb.
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CAPSO Na CAS: 102601-34-3 Chaw tsim tshuaj paus Nqe
CAPSO Na, tseem hu ua 3-(cyclohexylamino)-2-hydroxy-1-propanesulfonic acid sodium ntsev, yog ib tug compound uas belongs rau tsev neeg ntawm sulfonic acids.Nws yog zwitterionic tsis feem ntau siv nyob rau hauv ntau yam biochemical thiab molecular biology daim ntaub ntawv.
CAPSO Na ua raws li tus neeg saib xyuas pH zoo thiab tau siv dav hauv cov qauv tsis sib xws kom tswj tau qhov pH ruaj khov hauv ib qho tshwj xeeb.Nws muaj pKa tus nqi ntawm ib ncig ntawm 9.8 thiab feem ntau ua haujlwm hauv kev sim uas xav tau pH ntawm 8.5 thiab 10.
Cov sodium ntsev daim ntawv ntawm CAPSO (CAPSO Na) txhim khu lub solubility thiab yooj yim ntawm tuav piv rau cov dawb acid daim ntawv.Nws yog dej-soluble thiab yooj yim tsim cov kev daws teeb meem ruaj khov ntawm ntau qhov sib txawv, ua kom yooj yim rau ntau yam kev siv hauv chav kuaj.
Qee qhov kev siv ntawm CAPSO Na suav nrog kev ua haujlwm tsis zoo hauv cov txheej txheem electrophoresis, enzyme kev soj ntsuam, protein purification, thiab cell culture media.Nws lub peev xwm buffering thiab kev sib raug zoo nrog cov kab ke lom neeg ua rau nws muaj txiaj ntsig hauv cov haujlwm no.
