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3-(N,N-dimethyldodecylammonio) propanesulfonate CAS: 14933-08-5
N-(2-Aminoethyl) morpholine, tseem hu ua AEM, yog ib qho tshuaj lom neeg uas muaj cov qauv kab ncaj. Nws muaj ib lub nplhaib morpholine nrog ib pawg aminoethyl txuas rau ib qho ntawm nws cov nitrogen atoms. AEM yog ib qho kua tsis muaj xim nrog ib qho tsw ntxhiab tshwj xeeb.
AEM siv tau rau ntau yam kev lag luam. Nws feem ntau yog siv ua cov kuab tshuaj rau cov organic sib xyaw vim nws cov khoom ua tau zoo heev. Tsis tas li ntawd, AEM ua haujlwm ua cov tshuaj tiv thaiv xeb hauv kev lag luam uas cuam tshuam nrog kev ntxuav hlau, kev tsim roj thiab roj av, thiab kev kho dej. Nws pab tiv thaiv cov hlau kom tsis txhob xeb thiab xeb.
Tsis tas li ntawd xwb, AEM ua haujlwm ua cov tshuaj nruab nrab rau kev tsim cov tshuaj, cov tshuaj agrochemicals, thiab cov tshuaj tshwj xeeb. Nws siv rau hauv cov khoom ntxiv polymer los txhim kho cov khoom nplaum ntawm cov txheej txheem, cov nplaum, thiab cov sealants. AEM kuj tseem siv ua tus kho pH lossis tus neeg sawv cev buffering hauv qee cov txheej txheem kev lag luam.
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MES monohydrate CAS: 145224-94-8
MES monohydrate yog daim ntawv hydrated ntawm 4-Morpholineethanesulfonic acid (MES), ib qho buffering agent feem ntau siv rau hauv kev tshawb fawb txog tsiaj txhu thiab biochemical. Nws yog ib qho hmoov dawb crystalline uas yaj tau hauv dej thiab muaj tus nqi pKa nyob ib puag ncig 6.1. MES monohydrate paub txog nws lub peev xwm los tswj kom muaj pH ruaj khov hauv qhov ntau ntawm 5.5 txog 6.7, ua rau nws tsim nyog rau ntau yam kev siv xws li kev tshawb fawb enzyme, protein purification, gel electrophoresis, cell culture, thiab tshuaj lom neeg. Nws qhov kev hloov pauv tau yooj yim thiab kev sib raug zoo nrog cov kab ke hauv lub cev ua rau nws yog ib qho tseem ceeb hauv ntau qhov kev sim thiab cov txheej txheem hauv chaw kuaj mob.
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Alpha-D-Glucose pentaacetate CAS: 3891-59-6
Alpha-D-glucose pentaacetate yog ib qho tshuaj lom neeg uas tau los ntawm kev acetylating cov hydroxyl pawg ntawm alpha-D-glucose nrog tsib acetyl pawg. Nws feem ntau siv rau hauv kev tsim cov organic ua ib pawg tiv thaiv rau cov hydroxyl pawg uas muaj nyob hauv cov carbohydrates. Nws kuj tseem siv tau ua ib qho tshuaj siv rau hauv kev tshawb fawb thiab kev tshuaj ntsuam xyuas tshuaj, thiab ua ib qho khoom siv pib rau kev tsim ntau yam tshuaj. Tsis tas li ntawd, glucose pentaacetate tau raug tshawb nrhiav txog nws qhov kev siv tau hauv cov txheej txheem xa tshuaj, vim nws cov khoom tso tawm tswj tau.
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Tris-HCl CAS: 1185-53-1 Tus nqi tsim khoom
Tris-HCl, tseem hu ua Tris hydrochloride, yog ib qho khoom siv buffer uas siv ntau hauv ntau yam kev siv. Nws yog kev sib xyaw ua ke ntawm Tris (tris (hydroxymethyl) aminomethane) thiab hydrochloric acid. Lub tshuab buffer no ua haujlwm tau zoo hauv kev tswj hwm ib puag ncig pH ruaj khov, tshwj xeeb tshaj yog nyob rau hauv qhov ntau ntawm pH 7-9. Tris-HCl siv dav hauv cov txheej txheem molecular biology, protein biochemistry, enzymology, thiab lwm yam kev siv biochemical. Nws pab tswj hwm qhov zoo tshaj plaws pH uas xav tau rau cov txheej txheem no, ua kom ntseeg tau tias muaj kev ruaj khov thiab kev ua haujlwm ntawm cov protein, enzymes, thiab nucleic acids. Tris-HCl muaj nyob rau hauv ntau hom, xws li hmoov lossis cov tshuaj concentrated, ua rau nws yooj yim los npaj thiab siv hauv ntau qhov chaw kuaj mob.
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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 ib qho tshuaj lom neeg uas muaj ib pawg N-ethyl, ib pawg sulfopropyl, thiab ib pawg 3-methoxyaniline. Nws feem ntau muaj nyob rau hauv ib qho sodium ntsev, uas ua rau nws cov solubility hauv dej zoo dua.
Cov tshuaj no muaj ntau yam kev siv hauv kev lag luam thiab kev tshawb fawb. Nws tuaj yeem siv ua cov xim nruab nrab, catalyst, lossis ua cov tshuaj reagent hauv kev tsim cov organic. Nws cov khoom, xws li solubility, stability, thiab reactivity, ua rau nws haum rau cov ntawv thov tshwj xeeb hauv ntau qhov chaw.
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2,3,4,6-TETRA-O-BENZOYL-ALPHA-D-GLUCOPYRANOSYL BROMIDE CAS: 14218-11-2
2,3,4,6-Tetra-O-benzoyl-alpha-D-glucopyranosyl bromide yog ib qho tshuaj lom neeg uas yog cov khoom qab zib. Nws muaj cov piam thaj glucose nrog plaub pawg benzoyl txuas rau nws cov pawg hydroxyl, nrog rau ib qho bromide atom ntawm qhov chaw anomeric.
Cov tshuaj no feem ntau yog siv rau hauv cov tshuaj lom neeg thiab tshuaj kho mob ua ib pawg tiv thaiv rau kev ua haujlwm ntawm hydroxyl ntawm glucose. Cov pawg benzoyl ua haujlwm los npog cov pab pawg hydroxyl uas ua haujlwm ib ntus, ua rau lawv tsis tshua muaj kev cuam tshuam rau cov tshuaj tsis xav tau thaum lub sijhawm ua cov txheej txheem tsim. Qhov no tso cai rau kev xaiv ua haujlwm ntawm cov pab pawg hydroxyl tshwj xeeb hauv cov khoom siv glucose.
Ntxiv mus, cov benzoyl-protected glucose derivatives tuaj yeem siv ua cov khoom siv rau kev tsim cov glycosides thiab glycoconjugates. Glycosides yog cov tshuaj uas tsim los ntawm kev sib txuas ntawm cov suab thaj rau lwm yam khoom, xws li tshuaj lossis cov khoom ntuj, thiab lawv pom cov ntawv thov hauv kev tsim tshuaj thiab tshuaj lom neeg biology.
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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.
