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TOOS CAS:82692-93-1 Tus nqi tsim khoom
Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonate yog ib hom tshuaj lom neeg uas 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 rhuav tshem cov disulfide bonds hauv cov protein, hloov lawv mus rau hauv cov pab pawg sulfhydryl. Cov txheej txheem 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, kev cim protein, thiab kev rov ua dua protein. MESNa ua lub luag haujlwm tseem ceeb hauv kev tswj cov protein, kev tshuaj xyuas, thiab kev hloov kho hauv kev tshawb fawb.
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CAPSO Na CAS:102601-34-3 Tus nqi tsim khoom
CAPSO Na, tseem hu ua 3-(cyclohexylamino)-2-hydroxy-1-propanesulfonic acid sodium ntsev, yog ib qho tshuaj uas yog los ntawm tsev neeg ntawm cov kua qaub sulfonic. Nws yog ib qho zwitterionic buffer uas feem ntau siv rau hauv ntau yam kev siv biochemical thiab molecular biology.
CAPSO Na ua haujlwm ua tus neeg sawv cev tswj pH zoo thiab siv dav hauv cov qauv buffer kom tswj tau pH ruaj khov hauv qhov ntau yam tshwj xeeb. Nws muaj tus nqi pKa ntawm kwv yees li 9.8 thiab feem ntau siv rau hauv kev sim uas xav tau pH ntawm 8.5 thiab 10.
Cov ntsev sodium ntawm CAPSO (CAPSO Na) ua rau kom muaj kev yaj thiab yooj yim dua piv rau cov kua qaub dawb. Nws yaj tau hauv dej thiab yooj yim tsim cov tshuaj ruaj khov ntawm ntau qhov sib txawv, ua rau nws yooj yim rau ntau yam kev siv hauv chav kuaj.
Qee qhov kev siv CAPSO Na feem ntau suav nrog kev ua haujlwm ua lub buffer hauv cov txheej txheem electrophoresis, kev ntsuam xyuas enzyme, kev ntxuav protein, thiab cov kab lis kev cai ntawm tes. Nws lub peev xwm buffering thiab kev sib raug zoo nrog cov kab ke hauv lub cev pab txhawb rau nws cov txiaj ntsig hauv cov teb no.
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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 ib qho tshuaj lom neeg uas feem ntau siv rau hauv cov tshuaj carbohydrate thiab glycosylation reactions. Nws yog ib qho derivative ntawm α-D-galactopyranose, ib hom suab thaj, qhov twg cov hydroxyl pawg ntawm 2, 3, 4, thiab 6 txoj haujlwm ntawm lub nplhaib galactopyranose yog acetylated. Tsis tas li ntawd, cov pa roj carbon anomeric (C1) ntawm cov suab thaj yog tiv thaiv nrog ib pawg trichloroacetimidate, uas ua rau nws yog ib qho electrophile muaj zog thaum lub sijhawm glycosylation reactions.
Cov tshuaj no feem ntau siv los ua tus neeg sawv cev glycosylating los qhia cov galactose moieties rau hauv ntau yam molecules, xws li cov protein, peptides, lossis cov organic molecules me me. Qhov no tuaj yeem ua tiav los ntawm kev cuam tshuam cov tshuaj no nrog nucleophile (piv txwv li, hydroxyl pawg ntawm lub hom phiaj molecule) nyob rau hauv cov xwm txheej tsim nyog. Pawg trichloroacetimidate pab txhawb kev txuas ntawm galactose moiety rau lub hom phiaj molecule, ua rau muaj kev tsim ntawm glycosidic bond.
Cov tshuaj no feem ntau siv rau hauv kev tsim cov glycoconjugates, glycopeptides, thiab glycolipids. Nws muab ib txoj hauv kev ua tau zoo thiab siv tau zoo rau kev hloov kho cov molecules nrog galactose residues, uas tuaj yeem cuam tshuam rau ntau qhov chaw, suav nrog kev tshawb fawb txog tsiaj txhu, kev xa tshuaj, lossis kev tsim tshuaj tiv thaiv kab mob.
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AMPD CAS: 115-69-5 Tus nqi tsim khoom
2-Amino-2-methyl-1,3-propanediol, tseem hu ua AMPD lossis α-methyl serinol, yog ib qho tshuaj lom neeg uas muaj cov mis molecular C4H11NO2. Nws yog ib qho amino cawv uas feem ntau siv ua cov tshuaj nruab nrab hauv kev tsim cov tshuaj thiab cov organic compounds. AMPD paub txog nws lub peev xwm los ua chiral auxiliary hauv cov tshuaj tiv thaiv asymmetric, ua rau nws muaj txiaj ntsig zoo hauv kev tsim cov enantiomerically pure compounds. Tsis tas li ntawd, nws tau siv ua cov khoom xyaw hauv kev saib xyuas tus kheej thiab cov khoom siv pleev kom zoo nkauj rau nws cov khoom moisturizing.
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MES sodium ntsev CAS: 71119-23-8
MES sodium ntsev, tseem hu ua 2-(N-morpholino)ethanesulfonic acid sodium ntsev, yog ib hom tshuaj lom neeg uas feem ntau siv los ua tus neeg sawv cev rau kev thaiv. Nws yog ib qho kua qaub uas muaj tus nqi pKa kwv yees li 6.15. MES sodium ntsev yaj tau zoo heev hauv dej thiab nws qhov kev thaiv zoo yog nyob ib puag ncig pH 5.5 txog 6.7. Nws siv dav hauv kev tshawb fawb txog biochemical thiab biological, nrog rau ntau yam tshuaj lom neeg, kev ntxuav protein, gel electrophoresis, kev kawm enzyme, thiab kev sim kab lis kev cai ntawm tes. Cov ntsev sodium ua rau cov tshuaj no yaj tau zoo thiab ruaj khov, ua rau nws yooj yim dua rau kev tuav thiab siv hauv chaw kuaj mob.
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beta-d-glucose pentaacetate CAS: 604-69-3
Beta-D-glucose pentaacetate yog ib yam tshuaj uas tau los ntawm glucose, ib yam qab zib yooj yim. Nws yog tsim los ntawm acetylating glucose nrog tsib pawg acetyl, ua rau cov pawg no txuas rau cov hydroxyl (OH) pawg uas muaj nyob hauv cov glucose molecule. Qhov kev hloov pauv ntawm glucose no ua rau nws ruaj khov dua thiab ua rau nws yaj tau hauv cov organic solvents.
Beta-D-glucose pentaacetate muaj ntau yam kev siv hauv kev tshawb fawb txog cov organic chemistry, tshwj xeeb tshaj yog hauv kev tsim thiab kev hloov kho cov carbohydrates. Nws tuaj yeem ua haujlwm ua tus precursor lossis intermediate hauv kev npaj lwm cov carbohydrate derivatives lossis cov organic compounds complex. Tsis tas li ntawd, nws tau siv rau hauv qee qhov kev siv kho mob thiab tshuaj xws li cov txheej txheem xa tshuaj thiab cov qauv tso tawm tswj hwm.
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2-(tris(hydroxymethyl)methylamino)ethane-1-sulphonic acid CAS:7365-44-8
2-(Tris(hydroxymethyl)methylamino)ethane-1-sulfonic acid, luv ua TES, yog ib qho tshuaj lom neeg feem ntau siv ua tus neeg sawv cev buffering hauv kev tshawb fawb txog kab mob thiab tshuaj lom neeg. Ua ib qho sulfonic acid derivative ntawm tris(hydroxymethyl)aminomethane (Tris), TES tuaj yeem tswj tau pH ntau ntawm 6.8 txog 8.2. Nws feem ntau siv rau hauv cov xov xwm kab lis kev cai ntawm tes, cov tshuaj tiv thaiv enzymatic, protein electrophoresis, thiab DNA/RNA kev tshawb fawb. TES muaj ntau yam thiab tseem ceeb rau kev tswj hwm qhov zoo tshaj plaws hauv ntau yam kev sim thiab cov txheej txheem hauv chaw kuaj mob.
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piperazine-1,4-bis(2-ethanesulfonic acid) disodium ntsev CAS: 76836-02-7
Disodium piperazine-1,4-diethanesulphonate yog ib hom tshuaj uas feem ntau siv los ua tus neeg sawv cev buffering thiab stabilizer hauv ntau yam kev siv hauv kev tshawb fawb thiab kev kho mob. Nws yog ib qho ntsev sodium organic uas tau los ntawm piperazine thiab diethanesulphonic acid.
Cov tshuaj no yaj tau zoo heev hauv dej thiab muaj cov xim dawb crystalline. Nws paub txog nws cov khoom tswj pH, pab tswj cov acidity lossis alkalinity ntawm cov tshuaj kom nyob rau hauv qhov ntau yam xav tau.
Ib qho kev siv tseem ceeb ntawm disodium piperazine-1,4-diethanesulphonate yog nyob rau hauv thaj chaw ntawm electrophysiology thiab neurobiology. Nws feem ntau yog siv ua ib feem ntawm cov tshuaj electrophysiological thiab cov kab lis kev cai ntawm tes kom tswj tau qhov ruaj khov thiab kev ncaj ncees ntawm cov tes thiab cov ntaub so ntswg thaum lub sijhawm sim.
Tsis tas li ntawd xwb, cov tshuaj no tau pom tias muaj qee cov teebmeem neuroprotective thiab antioxidant, ua rau nws muaj peev xwm pab tau rau kev tshawb fawb ntsig txog lub paj hlwb hauv nruab nrab thiab kev ntxhov siab oxidative.
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2-NAPHTHYL-BETA-D-GALACTOPYRANOSIDE CAS: 312693-81-5
2-NAPHTHYL-BETA-D-GALACTOPYRANOSIDE yog ib yam tshuaj uas feem ntau siv rau hauv kev tshawb fawb thiab kev tshuaj xyuas biochemical. Nws yog ib qho derivative ntawm galactose, ib hom suab thaj. Cov tshuaj no feem ntau siv ua lub substrate rau kev ntes cov haujlwm ntawm beta-galactosidase, ib qho enzyme uas muaj nyob hauv ntau yam kab mob, suav nrog cov kab mob bacteria. Thaum beta-galactosidase muaj, nws txiav 2-NAPHTHYL-BETA-D-GALACTOPYRANOSIDE ua naphthol thiab galactose. Cov naphthol molecule uas tshwm sim tuaj yeem pom tau yooj yim los ntawm nws qhov kev nqus ntawm lub teeb ultraviolet, uas tso cai rau cov kws tshawb fawb ntsuas cov haujlwm ntawm beta-galactosidase. Qhov kev sim no feem ntau siv rau hauv kev tshawb fawb molecular biology thiab genetics, rau cov ntawv thov xws li kev kawm txog kev tswj hwm gene, kev qhia protein, thiab kev muaj sia nyob ntawm cell.
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TOPS CAS:40567-80-4 Tus nqi tsim khoom
Sodium 3-(N-ethyl-3-methylanilino)propanesulfonate yog ib yam tshuaj uas muaj cov qauv molecular nyuaj. Nws feem ntau siv rau hauv ntau yam kev tshawb fawb thiab kev tshawb fawb. Cov tshuaj no yog ib qho sulfonate derivative, paub txog nws cov solubility hauv dej thiab lwm cov kuab tshuaj polar. Nws tuaj yeem siv ua reagent lossis additive hauv cov tshuaj tiv thaiv thiab cov txheej txheem. Vim nws cov qauv thiab cov khoom tshwj xeeb, Sodium 3-(N-ethyl-3-methylanilino)propanesulfonate feem ntau siv rau hauv kev tsim cov tshuaj, cov xim, thiab lwm yam organic compounds.
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CHES Na CAS:103-47-9 Tus nqi tsim khoom
2-(Cyclohexylamino) ethanesulfonic acid yog ib qho tshuaj sib xyaw nrog cov mis molecular C10H21NO3S. Nws kuj tseem paub los ntawm nws lub npe luv CHES. CHES yog ib qho sulfonic acid derivative uas muaj ob qho tib si amino pawg thiab sulfonic acid pawg hauv nws cov qauv.
CHES feem ntau siv ua tus neeg sawv cev buffering hauv kev tshawb fawb biochemical thiab biological. Nws yog pH-ruaj khov thiab tswj hwm ib puag ncig pH sib xws, tshwj xeeb tshaj yog nyob rau hauv cov chaw kuaj mob uas muaj cov tshuaj tiv thaiv enzymatic lossis kev tshawb fawb protein. CHES muaj pKa ntawm 9.3, ua rau nws yog ib qho buffer zoo nyob ib puag ncig pH 9.
Nws cov qauv tshuaj lom neeg tshwj xeeb thiab cov khoom ua rau CHES muaj txiaj ntsig zoo rau ntau yam kev siv, xws li kev npaj cov tshuaj buffer rau electrophoresis, enzyme assays, thiab cell culture media. Nws feem ntau nyiam rau cov ntawv thov uas xav tau pH ntawm 8.5 txog 10.
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2,3,4,6-Tetra-O-benzyl-D-galactopyranose CAS: 53081-25-7
2,3,4,6-Tetra-O-benzyl-D-galactopyranose yog ib qho tshuaj uas feem ntau siv rau hauv kev tsim cov organic, tshwj xeeb tshaj yog hauv kev tshawb fawb txog carbohydrate chemistry. Nws ua haujlwm ua ib pawg tiv thaiv rau cov hydroxyl pawg ntawm galactose, uas tiv thaiv cov tshuaj tiv thaiv tsis xav tau thaum lub sijhawm hloov pauv tshuaj. Cov tshuaj no muaj cov molecule galactose nrog plaub pawg benzyl txuas rau cov pawg hydroxyl ntawm qhov chaw 2, 3, 4, thiab 6 ntawm lub nplhaib galactose.
Qhov muaj cov pab pawg benzyl tiv thaiv cov pab pawg hydroxyl, ua rau lawv tsis muaj zog, thaum khaws cov tshuaj tiv thaiv ntawm lwm cov pab pawg ua haujlwm hauv lub molecule. Qhov no ua rau muaj kev hloov pauv xaiv ntawm galactose lossis kev hloov pauv ntxiv yam tsis cuam tshuam rau cov pab pawg hydroxyl tiv thaiv.
2,3,4,6-Tetra-O-benzyl-D-galactopyranose feem ntau yog siv ua cov khoom siv pib rau kev tsim cov carbohydrates nyuaj, glycoconjugates, lossis lwm yam tshuaj uas muaj galactose residues. Nws muaj txiaj ntsig zoo hauv glycosylation reactions, qhov twg nws ua haujlwm ua tus neeg pub glycosyl zoo, pab txhawb kev txuas ntawm galactose rau cov molecules txais.
