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N-Acetyl-L-cysteine CAS: 616-91-1
N-Acetyl-L-cysteine (NAC) yog ib hom amino acid cysteine uas tau hloov kho. Nws muab ib qho chaw ntawm cysteine thiab tuaj yeem hloov pauv mus rau hauv tripeptide glutathione, uas yog ib qho antioxidant muaj zog hauv lub cev. NAC paub txog nws cov khoom antioxidant thiab mucolytic, ua rau nws muaj txiaj ntsig zoo rau ntau yam kev siv kho mob.
Ua ib qho antioxidant, NAC pab tiv thaiv cov cell ntawm kev puas tsuaj los ntawm cov free radicals, reactive oxygen species, thiab cov tshuaj lom. Nws kuj txhawb nqa glutathione synthesis, uas ua lub luag haujlwm tseem ceeb hauv lub cev cov txheej txheem detoxification thiab tswj lub cev tiv thaiv kab mob zoo.
NAC tau raug kawm txog nws cov txiaj ntsig zoo rau kev noj qab haus huv ntawm txoj hlab pa, tshwj xeeb tshaj yog rau cov tib neeg uas muaj mob xws li mob ntsws ntev, COPD, thiab cystic fibrosis. Nws feem ntau yog siv los ua expectorant los pab kom nyias thiab xoob cov hnoos qeev, ua rau nws yooj yim dua los ntxuav cov hlab pa.
Tsis tas li ntawd xwb, NAC tau qhia txog kev cog lus hauv kev txhawb nqa kev noj qab haus huv ntawm lub siab los ntawm kev pab tshem tawm cov tshuaj lom, xws li acetaminophen, uas yog ib yam tshuaj uas siv ntau rau kev mob. Nws kuj tseem yuav muaj cov txiaj ntsig tiv thaiv kev puas tsuaj ntawm lub siab los ntawm kev haus cawv.
Ntxiv rau nws cov khoom siv antioxidant thiab kev txhawb nqa kev ua pa, NAC tau raug tshawb nrhiav txog nws cov txiaj ntsig zoo rau kev noj qab haus huv ntawm lub hlwb. Qee qhov kev tshawb fawb qhia tias nws yuav muaj qhov cuam tshuam zoo rau kev mob hlwb, xws li kev nyuaj siab thiab kev puas siab puas ntsws obsessive-compulsive (OCD).
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Glycyl-L-PROLINE CAS: 704-15-4
Glycyl-L-proline, tseem hu ua glycylproline lossis Gym-Pro, yog ib qho amino acid derivative uas muaj cov amino acid glycine txuas nrog cov amino acid L-proline. Nws yog ib qho tshuaj uas tshwm sim hauv collagen, ib qho protein uas yog lub luag haujlwm rau cov qauv thiab lub zog ntawm ntau yam nqaij hauv lub cev. Glycyl-L-proline tau raug kawm txog nws cov txiaj ntsig kev noj qab haus huv, suav nrog kev txhawb nqa kev noj qab haus huv ntawm daim tawv nqaij, txo qhov o, thiab txhawb nqa kev noj qab haus huv ntawm cov pob qij txha thiab pob txha. Nws kuj tseem siv rau hauv cov tshuaj pleev ib ce rau nws cov khoom moisturizing thiab antioxidant.
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Guanidine Hydrochloride CAS: 50-01-1
Guanidine hydrochloride yog ib qho tshuaj lom neeg uas muaj cov mis molecular CH5N3·HCl. Nws yog ib qho tshuaj chaotropic muaj zog uas siv dav hauv biochemistry thiab molecular biology applications.
Guanidine hydrochloride feem ntau siv los ua kom cov protein tsis zoo, cuam tshuam cov qauv protein, thiab nthuav cov protein rau lub hom phiaj kev ntxuav. Nws muaj txiaj ntsig zoo hauv kev rhuav tshem cov hydrogen bonds thiab cuam tshuam kev sib cuam tshuam tsis yog covalent hauv cov protein. Cov yam ntxwv no ua rau nws muaj txiaj ntsig zoo rau kev yaj cov protein uas feem ntau tsis yaj lossis yooj yim sib sau ua ke.
Nws kuj tseem siv ua tus stabilizer protein, tiv thaiv cov protein los ntawm kev sib sau ua ke lossis denaturation tsis xav tau thaum lub sijhawm ntau yam kev sim biochemical thiab biophysical. Guanidine hydrochloride tuaj yeem pab tswj cov qauv thiab kev ua haujlwm ntawm cov protein hauv qab cov xwm txheej denaturing..
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Acetylthiocholine iodide CAS: 1866-15-5
Acetylthiocholine iodide yog ib yam tshuaj uas feem ntau siv ua lub substrate hauv kev ntsuam xyuas enzyme los ntsuas qhov kev ua haujlwm ntawm cov enzyme acetylcholinesterase (AChE). AChE yog ib qho enzyme uas hydrolyzes cov neurotransmitter acetylcholine, uas yog ib kauj ruam tseem ceeb hauv kev txiav txim siab qhov kev xa xov ntawm cov hlwb paj hlwb.
Thaum acetylthiocholine iodide raug AChE ua haujlwm rau, pawg acetyl raug tshem tawm, ua rau muaj cov thiocholine thiab acetate ions. Thiocholine ces reacts nrog cov tshuaj reagent tsis muaj xim hu ua DTNB (5,5′-dithiobis(2-nitrobenzoic acid)) los tsim cov tshuaj daj hu ua 5-thio-2-nitrobenzoate, uas tuaj yeem ntsuas tau spectrophotometrically. Qhov nrawm ntawm kev txhim kho xim yog proportional ncaj qha rau kev ua haujlwm ntawm AChE hauv cov qauv.
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2-Methoxy-4-morpholinobenzenediazonium chloride zinc chloride ob npaug ntsev (21) CAS: 67801-08-5
2-Methoxy-4-morpholinobenzenediazonium chloride zinc chloride ob lub ntsev yog ib qho khoom siv crystalline khov kho siv ua cov tshuaj reagent hauv cov organic synthesis. Nws muaj diazonium cation, chloride anions, thiab zinc cations. Cov tshuaj no muaj kev ruaj khov thiab solubility zoo dua, ua rau nws haum rau ntau yam tshuaj lom neeg thiab tshuaj siv.
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4,5-Diazafluoren-9-ib CAS: 50890-67-0
4,5-Diazafluoren-9-ib yog ib yam tshuaj uas yog ib feem ntawm cov tshuaj heterocyclic aromatic. Nws muaj ib lub pob txha fluorene nrog ob lub nitrogen atoms (diaza) thiab ib lub oxygen atom (ib) txuas rau ntawm qhov chaw tshwj xeeb. Nws feem ntau siv ua lub tsev thaiv lossis nruab nrab hauv kev tsim cov organic, tshwj xeeb tshaj yog hauv kev npaj ntau yam organic compounds, tshuaj, thiab dyes. Nws cov qauv thiab reactivity ua rau nws yog ib qho cuab yeej muaj txiaj ntsig rau kev tsim ntau yam qauv molecular thiab cov pab pawg ua haujlwm.
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Tapso Sodium CAS: 105140-25-8 Tus nqi tsim khoom
3-[N-Tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic acid,Nws kuvtus neeg sawv cev zwitterionic buffering hauv daim ntawv ntawm cov ntsev sodium. Nws feem ntau siv rau hauv kev sim biochemical thiab molecular biology rau kev tswj hwm pH ruaj khov hauv cov tshuaj.It Nws yaj tau zoo heev hauv dej thiab muaj pKa ze rau physiological pH, ua rau nws haum rau ntau yam kev siv xws li protein purification, enzyme assays, cell culture, thiab electrophoresis. Nws cov qauv tshuaj lom neeg tshwj xeeb thiab kev sib raug zoo nrog cov kab ke hauv lub cev ua rau nws yog ib qho tseem ceeb hauv ntau yam kev cai hauv chav kuaj mob.
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4-Nitrophenyl phosphate di(tris) ntsev CAS:68189-42-4
4-Nitrophenyl phosphate di(tris) ntsev yog ib yam tshuaj siv hauv kev tshawb fawb thiab kev kuaj mob biochemical. Nws feem ntau siv ua lub substrate rau alkaline phosphatase enzyme assays. Cov ntsev no, thaum hydrolyzed los ntawm alkaline phosphatase, tsim cov khoom daj uas tuaj yeem ntsuas tau yooj yim spectrophotometrically. Cov tshuaj tiv thaiv no siv dav hauv ntau yam kev siv, suav nrog enzyme-linked immunosorbent assays (ELISAs) thiab phosphatase kev ua haujlwm nrhiav. Qhov xim daj yog ncaj qha proportional rau enzyme kev ua haujlwm, tso cai rau kev ntsuas qhov tseeb ntawm alkaline phosphatase theem hauv cov qauv biological. 4-Nitrophenyl phosphate di(tris) ntsev yog ruaj khov, yaj hauv dej, thiab rhiab heev, ua rau nws yog qhov kev xaiv nrov rau enzyme assays hauv kev tshawb fawb biological thiab kev kho mob.
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Nitrotetrazolium xiav chloride CAS: 298-83-9
Nitortrazolium xiav chloride, tseem hu ua NBT lossis NBT-Cl, yog ib qho tshuaj lom neeg uas feem ntau siv rau hauv kev kuaj mob biological thiab biochemical. Nws yog ib qho hmoov daj daj crystalline uas yaj tau hauv dej.
NBT feem ntau siv ua ib qho cim qhia kom paub txog qhov muaj cov superoxide radicals lossis cov enzymes uas tsim lawv. Nws hloov xim thaum raug txo los ntawm cov superoxide radicals, hloov los ntawm daj mus rau xiav formazan precipitate. Cov tshuaj tiv thaiv no feem ntau siv rau hauv kev sim los kawm txog kev ntxhov siab oxidative, kev ua pa ntawm tes, thiab kev ua haujlwm ntawm enzyme.
NBT feem ntau siv rau hauv ntau txoj kev, xws li kev txo qis nitroblue tetrazolium, los pom cov superoxide tsim tawm hauv cov hlwb thiab cov nqaij. Nws kuj tau siv rau hauv immunohistochemistry thiab histochemistry los ntes thiab nrhiav lwm cov enzymes thiab cov khoom hauv hlwb.
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NSP-AS CAS: 211106-69-3 Tus nqi tsim khoom
Cov tshuaj 3-[9-((((3-(carboxypropyl)[4-Methxylphenyl]sulfonyl)aMine)carboxyl]-10-acridiniuMyl)-1-propanesulfonate sab hauv ntsev yog ib qho molecule complex uas muaj ib qho acridinium moiety txuas nrog ib qho propanesulfonate sab hauv ntsev. Nws muaj ib pawg carboxypropyl, ib pawg 4-Methxylphenylsulfonyl, thiab ib pawg amine. Cov tshuaj no yuav raug tsim los rau cov ntawv thov tshwj xeeb hauv cov cheeb tsam xws li chemistry, pharmaceuticals, lossis kev tshawb fawb.
Tsis tas li ntawd xwb, NAC tau qhia txog kev cog lus hauv kev txhawb nqa kev noj qab haus huv ntawm lub siab los ntawm kev pab tshem tawm cov tshuaj lom, xws li acetaminophen, uas yog ib yam tshuaj uas siv ntau rau kev mob. Nws kuj tseem yuav muaj cov txiaj ntsig tiv thaiv kev puas tsuaj ntawm lub siab los ntawm kev haus cawv.
Ntxiv rau nws cov khoom siv antioxidant thiab kev txhawb nqa kev ua pa, NAC tau raug tshawb nrhiav txog nws cov txiaj ntsig zoo rau kev noj qab haus huv ntawm lub hlwb. Qee qhov kev tshawb fawb qhia tias nws yuav muaj qhov cuam tshuam zoo rau kev mob hlwb, xws li kev nyuaj siab thiab kev puas siab puas ntsws obsessive-compulsive (OCD).
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L-Leucine p-nitroanilide hydrochloride CAS: 16010-98-3
L-Leucine p-nitroanilide hydrochloride yog ib qho tshuaj lom neeg uas yog ib feem ntawm pawg p-nitroanilide derivatives. Nws yog ib qho hmoov dawb mus rau dawb-dawb crystalline uas feem ntau siv rau hauv kev tshawb fawb biochemical thiab kev ntsuam xyuas enzyme.
L-Leucine p-nitroanilide hydrochloride feem ntau siv ua ib qho substrate los ntsuas qhov kev ua haujlwm ntawm cov enzymes xws li proteases thiab peptidases. Thaum cov enzymes no txiav L-Leucine p-nitroanilide hydrochloride, nws tso tawm p-nitroaniline, uas tuaj yeem kuaj pom spectrophotometrically. Tus nqi ntawm kev hloov xim yog ncaj qha proportional rau qhov kev ua haujlwm enzymatic, uas tso cai rau kev ntsuas ntawm qhov kev ua haujlwm enzyme hauv cov qauv biological.
Cov tshuaj no yaj tau hauv dej thiab yooj yim yaj rau hauv cov tshuaj buffer uas tsim nyog rau kev siv hauv kev ntsuam xyuas enzymatic. Nws yog ib qho tseem ceeb kom khaws cia L-Leucine p-nitroanilide hydrochloride rau hauv qhov chaw txias thiab qhuav kom tswj tau nws qhov ruaj khov.
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Guanidine Thiocyanate Sulfate CAS: 593-84-0
Guanidine thiocyanate sulfate yog ib qho tshuaj sib xyaw ua los ntawm guanidine, thiocyanate, thiab sulfate ions. Nws feem ntau siv rau hauv kev tshawb fawb txog molecular biology thiab biochemistry ua tus neeg sawv cev chaotropic.
Guanidine thiocyanate sulfate feem ntau siv rau hauv cov txheej txheem cais DNA thiab RNA los cuam tshuam cov cellular membranes thiab denature protein, uas ua rau muaj kev rho tawm zoo ntawm nucleic acids. Nws pab hauv kev yaj ntawm DNA thiab RNA, ua rau lawv cais thiab ntxuav los ntawm ntau yam qauv tshuaj lom neeg.
Vim nws cov khoom chaotropic, guanidine thiocyanate sulfate pab rhuav tshem hydrogen bonding thiab lwm yam kev sib cuam tshuam tsis yog-covalent, pab txhawb kev sib cais ntawm nucleic acids los ntawm cov protein, lipids, thiab lwm yam khoom ntawm tes. Nws kuj pab tiv thaiv RNase kev ua haujlwm, xyuas kom meej tias muaj kev ncaj ncees thiab kev ntshiab ntawm cov nucleic acids uas tau rho tawm..
