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Diethylene triamine pentaacetic acid CAS: 67-43-6
Diethylene triamine pentaacetic acid (DTPA) yog ib yam tshuaj lom neeg uas feem ntau siv ua tus neeg sawv cev chelating. Nws muaj peev xwm khi nrog cov hlau hnyav ions, tshwj xeeb tshaj yog cov hlau lead, mercury, thiab cadmium, los tsim cov khoom sib xyaw ruaj khov. DTPA siv rau ntau yam kev siv, suav nrog kev kho ib puag ncig, kev kho mob, cov txheej txheem kev lag luam, thiab cov tshuaj radiopharmaceuticals. Nws cov khoom siv hlau-chelating ua rau nws muaj txiaj ntsig zoo hauv kev tshem tawm cov hlau hnyav ntawm cov dej khib nyiab, kho cov hlau hnyav lom, tiv thaiv kev cuam tshuam hauv cov tshuaj lom neeg, thiab pab txhawb kev xa cov tshuaj kho mob. Zuag qhia tag nrho, DTPA yog ib qho tshuaj sib xyaw ua ke nrog cov ntawv thov tseem ceeb hauv ntau yam lag luam.
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2,2′-Oxybis (ethylamine) dihydrochloride CAS: 60792-79-2
2,2′-Oxybis(ethylamine) dihydrochloride, tseem hu ua diethylenetriamine, yog ib qho tshuaj lom neeg uas muaj cov mis molecular C6H16N2Cl2. Nws yog ib qho kua ntshiab, tsis muaj xim nrog ib qho ntxhiab tsw tshwj xeeb.
Diethylenetriamine feem ntau yog siv ua lub hauv paus rau kev tsim ntau yam organic compounds. Nws feem ntau siv ua tus neeg sawv cev crosslinking hauv kev tsim cov khoom siv polymeric, xws li resins, adhesives, thiab coatings. Nws kuj tseem tuaj yeem ua haujlwm ua tus neeg sawv cev chelating rau cov hlau ions, uas ua rau nws muaj txiaj ntsig zoo rau kev siv xws li hlau plating thiab kev kho dej.
Ntxiv rau, diethylenetriamine siv rau hauv kev lag luam tshuaj ua cov khoom siv pib rau kev tsim cov tshuaj thiab cov tshuaj nruab nrab. Nws tuaj yeem hloov kho kom qhia txog cov haujlwm tshwj xeeb thiab txhim kho cov tshuaj ua haujlwm tau zoo.
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Ethidium Bromide CAS: 1239-45-8
Ethidium bromide (EtBr) yog ib hom xim fluorescent uas siv ntau hauv molecular biology thiab biochemistry los pom cov nucleic acids, tshwj xeeb yog DNA, hauv agarose gel electrophoresis. Nws muaj kev sib raug zoo rau DNA thiab, thaum raug rau lub teeb ultraviolet (UV), nws fluoresces thiab tso tawm xim liab-txiv kab ntxwv. Qhov no tso cai rau cov kws tshawb fawb kom yooj yim nrhiav thiab tshuaj xyuas cov DNA fragments sib cais los ntawm qhov loj me hauv gel matrix.
EtBr sib xyaw ua ke ntawm cov khub DNA thiab RNA, ua rau nws cov yam ntxwv fluorescence hloov pauv. Feem ntau nws raug ntxiv rau hauv agarose gels lossis sib xyaw nrog DNA qauv ua ntej electrophoresis. Thaum lub gel raug rau lub teeb UV, cov DNA bands uas muaj EtBr tshwm sim ua cov kab txiv kab ntxwv ci ntsa iab tawm tsam keeb kwm yav dhau tsaus ntuj, ua rau nws yooj yim pom thiab tshuaj xyuas cov DNA fragments.
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3,3′-Diaminobenzidine CAS: 91-95-2
3,3′-Diaminobenzidine (DAB) yog ib yam tshuaj uas feem ntau siv hauv biochemistry thiab histology rau kev pleev xim rau cov protein, nucleic acids, thiab lwm yam macromolecules. Thaum oxidized, nws tsim cov xim av uas yooj yim pom hauv qab lub tshuab microscope. Kev pleev xim DAB feem ntau siv los ntes qhov muaj thiab qhov chaw ntawm cov molecules tshwj xeeb, xws li antigens lossis enzymes, hauv cov hlwb thiab cov nqaij. Nws yog ib qho kev xaiv nrov rau immunohistochemistry thiab immunocytochemistry cov txheej txheem vim nws muaj kev nkag siab siab thiab ruaj khov. Kev pleev xim DAB tuaj yeem muab cov kev nkag siab zoo rau cov qauv cellular thiab kev sib cuam tshuam molecular, pab txhawb kev tshawb fawb thiab kev kuaj mob hauv cov teb xws li tshuaj, biology, thiab pathology.
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Glycine CAS: 56-40-6 Tus nqi tsim khoom
Glycine yog ib qho ntawm cov amino acids yooj yim tshaj plaws thiab suav tias tsis tseem ceeb, txhais tau tias lub cev tuaj yeem tsim nws ntawm nws tus kheej. Nws ua lub luag haujlwm tseem ceeb hauv kev tsim cov protein, ua haujlwm ua lub hauv paus rau kev tsim cov protein.
Glycine kuj tseem koom nrog ntau yam txheej txheem metabolic hauv lub cev. Nws ua haujlwm ua tus precursor rau ntau yam tshuaj tseem ceeb, suav nrog heme (ib feem ntawm hemoglobin) thiab creatine (tseem ceeb rau kev hloov pauv zog hauv cov leeg nqaij).
Tsis tas li ntawd xwb, glycine ua haujlwm ua ib qho neurotransmitter hauv lub paj hlwb hauv nruab nrab, ua lub luag haujlwm hauv kev hloov kho qhov excitability ntawm cov hlwb paj hlwb. Nws tau txuas nrog kev txhawb nqa kev so, kev thaj yeeb, thiab kev pw tsaug zog zoo dua.
Glycine pom muaj nyob rau hauv ntau yam khoom noj, xws li nqaij, nqaij qaib, ntses, khoom noj mis nyuj, taum pauv, thiab qee yam txiv hmab txiv ntoo thiab zaub. Nws cov tshuaj ntxiv yuav siv tau los txhawb kev loj hlob ntawm cov leeg nqaij, txhim kho kev pw tsaug zog zoo, thiab txhawb kev noj qab haus huv tag nrho.
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4-METHOXYBENZENEDIAZONIUM TETRAFLUOROBORATE CAS: 459-64-3
4-Methoxybenzenediazonium tetrafluoroborate yog ib qho tshuaj lom neeg uas yog cov ntsev diazonium. Nws muaj ib pawg diazonium (N≡N⁺) txuas nrog lub nplhaib 4-methoxybenzene, thiab nws cov tshuaj tiv thaiv yog tetrafluoroborate (BF4⁻).
Cov ntsev diazonium paub txog lawv cov tshuaj tiv thaiv thiab feem ntau siv ua cov khoom siv nruab nrab hauv ntau yam kev sib xyaw ua ke ntawm cov organic. Lawv tuaj yeem hloov pauv ntau yam, suav nrog kev hloov pauv electrophilic aromatic, kev sib txuas ua ke, thiab kev sib xyaw ua ke ntawm azo dye.
4-Methoxybenzenediazonium tetrafluoroborate tau siv tshwj xeeb hauv kev tshuaj lom neeg organic los qhia pawg 4-methoxybenzene rau lwm cov molecules los ntawm kev sib txuas diazonium. Nws yog ib qho tshuaj reagent muaj txiaj ntsig zoo rau kev tsim cov aryl derivatives thiab tuaj yeem siv rau hauv kev npaj tshuaj, agrochemicals, thiab lwm yam organic compounds.
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Iodonitrotetrazolium chloride CAS: 146-68-9
Iodonitrotetrazolium chloride yog ib qho tshuaj uas siv rau hauv kev sim tshuaj lom neeg thiab tshuaj lom neeg los nrhiav seb puas muaj cov enzymes dehydrogenase. Nws feem ntau siv los ua xim redox los pom cov haujlwm ntawm cov metabolism hauv lub cev. Cov tshuaj no feem ntau tsis muaj xim tab sis tsim cov khoom formazan liab thaum nws cuam tshuam nrog cov enzymes tshwj xeeb uas muaj nyob hauv cov hlwb uas muaj sia nyob. Cov tshuaj tiv thaiv no tso cai rau cov kws tshawb fawb pom kev ua haujlwm thiab kev muaj sia nyob ntawm cov hlwb hauv kev sim lossis kev kuaj mob.
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4-Nitrophenyl phosphate disodium ntsev hexahydrate CAS: 4264-83-9
4-Nitrophenyl phosphate disodium ntsev hexahydrate yog ib qho tshuaj lom neeg uas feem ntau siv ua lub substrate rau kev ntes cov haujlwm ntawm phosphatase enzymes. Nws zoo li dawb mus rau dawb hmoov thiab yaj tau zoo heev hauv dej. Thaum ua haujlwm los ntawm phosphatase enzymes, nws dhau los ua ib qho tshuaj tiv thaiv uas ua rau muaj xim daj, uas tuaj yeem ntsuas tau spectrophotometrically. Cov tshuaj no pom cov ntawv thov hauv ntau yam kev sim biochemical thiab cov khoom siv kuaj mob rau kev ntes thiab ntsuas cov haujlwm phosphatase hauv cov qauv..
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Methylphenazinium methosulfate CAS: 299-11-6
Methylphenazinium methosulfate (MPMS) yog ib qho tshuaj redox-active uas feem ntau siv ua tus nqa hluav taws xob hauv ntau yam kev tshawb fawb biochemical thiab biophysical. Nws yog ib qho ntsev uas muaj methylphenazinium cation (ib qho heterocyclic compound) thiab methosulfate anion.
MPMS feem ntau siv los ua lwm txoj hauv kev rau cov neeg nqa hluav taws xob ib txwm muaj, xws li ferricyanide lossis phenazine ethosulfate, vim nws ruaj khov thiab solubility siab hauv dej. Nws muaj cov khoom redox zoo, uas tso cai rau nws txais thiab hloov cov electrons thaum lub sijhawm enzymatic reactions.
Ib qho ntawm cov ntawv thov tseem ceeb ntawm MPMS yog nyob rau hauv kev ntsuam xyuas uas cuam tshuam nrog kev ntsuas ntawm kev hloov pauv hluav taws xob lossis kev ua haujlwm enzymatic. Nws feem ntau siv ua ke nrog lub kaw lus enzyme los saib xyuas kev hloov pauv ntawm cov hluav taws xob ntawm cov khoom sib txawv. Kev txo qis ntawm MPMS tuaj yeem pom spectrophotometrically, qhov twg nws qhov absorbance hloov pauv raws li cov txheej txheem hloov pauv hluav taws xob.
MPMS kuj tseem siv rau hauv kev tshawb fawb txog mitochondrial respiration thiab oxidative phosphorylation. Nws tuaj yeem ua haujlwm ua tus txais electron dag, uas tso cai rau cov kws tshawb fawb tshawb nrhiav kev ua haujlwm thiab kev tswj hwm ntawm cov txheej txheem no hauv ntau yam kab mob.
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4-Nitrophenyl-alpha-L-fucopyranoside CAS: 10231-84-2
4-Nitrophenyl-alpha-L-fucopyranoside yog ib yam tshuaj uas yog los ntawm tsev neeg glycosides. Nws muaj ib lub molecule qab zib fucose txuas nrog ib pawg 4-nitrophenyl. Cov tshuaj no feem ntau siv ua ib lub substrate hauv kev ntsuam xyuas enzymatic los kawm txog kev ua haujlwm ntawm fucosidases, uas yog cov enzymes koom nrog kev rhuav tshem cov molecules uas muaj fucose. Thaum ua haujlwm los ntawm ib lub enzyme fucosidase, 4-nitrophenyl-alpha-L-fucopyranoside raug txiav, ua rau muaj kev tso tawm ntawm 4-nitrophenol, uas tuaj yeem ntsuas tau ntau yam siv spectrophotometry. Lub substrate no muaj txiaj ntsig zoo hauv kev tshawb fawb txog kev ua haujlwm enzymatic, kev tshwj xeeb ntawm substrate, kev tshuaj ntsuam inhibitor, thiab kinetics ntawm fucosidase enzymes.
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N-Ethylmaleimide CAS: 128-53-0 Tus nqi tsim khoom
N-Ethylmaleimide (NEM) yog ib qho organic compound me me uas feem ntau siv rau hauv kev tshawb fawb biochemistry thiab molecular biology. Nws ua haujlwm ua ib qho inhibitor tshwj xeeb ntawm cov protein sulfhydryl (thiol) pawg los ntawm kev hloov pauv thiab thaiv lawv cov haujlwm tsis rov qab. NEM muaj kev cuam tshuam nrog cov pawg sulfhydryl, xws li cov uas pom hauv cov amino acid cysteine, thiab tuaj yeem cuam tshuam nrog ob qho tib si sulfhydryl pawg dawb thiab cov uas nyob hauv cov protein. Qhov no ua rau NEM yog ib qho cuab yeej pab tau rau kev kawm txog kev ua haujlwm ntawm cov protein, kev sib cuam tshuam ntawm cov protein-protein, thiab kev ua haujlwm ntawm enzyme. Nws cov khoom inhibitory tau siv rau ntau yam kev siv, suav nrog proteomics, enzymology, structural biology, thiab kev tshawb pom tshuaj.
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4-Fluoro-7-nitrobenzofurazan CAS: 29270-56-2
4-Fluoro-7-nitrobenzofurazan yog ib qho tshuaj lom neeg uas muaj cov mis molecular C6H2FN3O3. Nws yog ib qho khoom daj crystalline uas feem ntau siv ua reagent hauv ntau yam tshuaj lom neeg. 4-Fluoro-7-nitrobenzofurazan paub txog nws lub peev xwm los ua tshuaj nrog cov amines thawj zaug, tsim cov fluorescent derivatives uas tuaj yeem pab tau rau hauv kev siv analytical xws li protein labeling thiab amino acid analysis. Nws kuj tseem siv rau hauv kev tshawb fawb txog enzyme kinetics thiab kev txiav txim siab ntawm nucleic acid sequences.
