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beta-D-Galactose pentaacetate CAS: 4163-60-4
Beta-D-Galactose pentaacetate yog ib qho tshuaj lom neeg uas tau los ntawm galactose, ib qho suab thaj monosaccharide. Nws yog tsim los ntawm acetylating txhua pawg hydroxyl ntawm galactose molecule nrog tsib pawg acetyl.
Cov tshuaj no feem ntau siv los ua tus neeg sawv cev tiv thaiv rau galactose hauv ntau yam tshuaj lom neeg thiab cov txheej txheem tsim. Daim ntawv pentaacetate pab kom galactose ruaj khov thiab tiv thaiv cov tshuaj tiv thaiv tsis xav tau lossis kev hloov pauv thaum lub sijhawm tshuaj tiv thaiv.
Tsis tas li ntawd xwb, cov tshuaj no siv tau ua cov khoom ua ntej rau kev tsim cov galactose derivatives. Cov acetyl pawg tuaj yeem raug tshem tawm kom tau txais cov galactose derivatives sib txawv nrog cov pab pawg ua haujlwm tshwj xeeb.
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5-Bromo-4-chloro-3-indolyl-beta-D-glucuronide sodium ntsev CAS: 129541-41-9
5-Bromo-4-chloro-3-indolyl-beta-D-glucuronide sodium ntsev yog ib qho tshuaj lom neeg uas feem ntau siv rau hauv kev tshawb fawb hauv chav kuaj thiab kev kuaj mob. Nws feem ntau hu ua X-Gluc thiab siv dav ua lub substrate rau kev kuaj pom cov haujlwm ntawm beta-glucuronidase enzyme.
Thaum beta-glucuronidase muaj nyob, nws txiav cov glucuronide bond hauv X-Gluc, ua rau muaj kev tso tawm ntawm cov xim xiav hu ua 5-bromo-4-chloro-3-indolyl. Cov tshuaj tiv thaiv no feem ntau siv los pom lossis spectrophotometrically ntes qhov kev qhia tawm ntawm beta-glucuronidase enzyme hauv cov hlwb lossis cov ntaub so ntswg.
Cov ntsev sodium ntawm X-Gluc txhim kho nws cov solubility hauv cov kua dej, ua kom yooj yim rau nws siv hauv kev sim hauv chaw kuaj mob. X-Gluc feem ntau yog siv rau hauv kev tshawb fawb txog molecular biology los kawm txog kev qhia txog gene, kev ua haujlwm ntawm promoter, thiab kev sim gene. Nws kuj tseem siv tau los ntes cov kab mob beta-glucuronidase, xws li cov kab mob me me, hauv kev tshawb fawb txog microbiological.
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4-Nitrophenyl-beta-D-xylopyranoside CAS: 2001-96-9
4-Nitrophenyl-beta-D-xylopyranoside yog ib qho chromogenic substrate siv rau hauv enzymatic assays los ntes thiab ntsuas qhov kev ua haujlwm ntawm cov enzymes hu ua beta-xylosidases.
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4-NITROPHENYL-ALPHA-D-MANNOPYRANOSIDE CAS: 10357-27-4
4-Nitrophenyl-alpha-D-mannopyranoside yog ib qho tshuaj siv hauv kev tshawb fawb biochemistry thiab molecular biology ua ib qho substrate rau kev kuaj pom thiab ntsuas qhov kev ua haujlwm ntawm enzyme.
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1,4-Dithioerythritol (DTE) CAS: 6892-68-8
Dithioerythritol (DTE) yog ib qho tshuaj uas feem ntau siv rau hauv kev tshawb fawb txog biochemical thiab molecular biology. Nws yog ib qho tshuaj uas muaj peev xwm rhuav tshem cov disulfide bonds, uas yog qhov tseem ceeb rau cov qauv protein thiab kev ruaj khov. DTE muaj txiaj ntsig zoo rau kev npaj cov qauv thiab kev ntxuav cov protein vim nws pab tswj cov protein hauv lawv cov qauv txo qis thiab nquag. Nws kuj tseem siv tau los tiv thaiv cov pab pawg thiol ntawm cov protein los ntawm oxidation. Tsis tas li ntawd, DTE muaj cov khoom antioxidant thiab tuaj yeem tshem tawm cov free radicals, ua rau nws muaj txiaj ntsig zoo rau ntau yam kev sim oxidative stress.
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Hydrogenated Tallowamine CAS: 61788-45-2
Hydrogenated tallowamine yog ib hom tshuaj uas yog los ntawm tsev neeg amine. Nws yog los ntawm tallow, uas yog cov rog uas tau los ntawm tsiaj txhu. Hydrogenated tallowamine feem ntau siv rau hauv ntau yam lag luam thiab kev siv vim nws cov khoom surfactant.
Ua ib qho surfactant, hydrogenated tallowamine muaj peev xwm txo qhov nro ntawm cov kua dej, ua rau lawv kis tau yooj yim dua thiab sib npaug. Qhov no ua rau nws yog ib qho khoom xyaw uas xav tau hauv cov khoom xws li cov tshuaj ntxuav tes, cov tshuaj ua kom ntaub mos, thiab cov tshuaj ntxuav, qhov twg nws pab txhim kho cov khoom ntxuav thiab ua npuas dej. Tsis tas li ntawd, hydrogenated tallowamine tuaj yeem ua haujlwm ua tus neeg sawv cev emulsifying, pab kom ruaj khov cov roj thiab dej sib xyaw, lossis lwm yam khoom sib xyaw tsis sib xyaw. Qhov no ua rau nws muaj txiaj ntsig zoo hauv kev tsim cov tshuaj pleev ib ce, xim, thiab cov khoom ua liaj ua teb, qhov twg nws pab txhawb kev faib cov khoom xyaw thiab txhim kho kev ua haujlwm ntawm cov khoom.
