Khoom piav qhia
Xanthineyog lub hauv paus purine dav faib rau hauv nruab nrog cev thiab kua dej ntawm tib neeg lub cev thiab lwm yam kab mob, feem ntau yog siv los ua ib qho stimulant thiab bronchodilator, tshwj xeeb tshaj yog rau kev kho mob hawb pob. Cov tshuaj tiv thaiv me me xws li caffeine, theophylline thiab theobromine (feem ntau pom hauv chocolate) yog muab los ntawm xanthines. Xanthine kuj yog ib yam khoom ntawm purine metabolism thiab hloov mus rau uric acid los ntawm xanthine oxidase.
Xanthineyog ib qho purine derivative thiab tsis tshua pom muaj nyob rau hauv cov khoom ntawm nucleic acids. Xanthine yog tsim los ntawm kev ua ntawm guanine los ntawm guanine deaminase thiab hypoxanthine los ntawm xanthine oxidase, uas nws thiaj li oxidized rau uric acid los ntawm xanthine oxidase. Qhov siab thiab qis qis ntawm xanthine thiab uric acid hauv tib neeg lub cev tuaj yeem siv los ua biomarkers rau ntau yam kab mob, xws li mob asphyxia, cerebral ischemia, tshwj xeeb tshaj yog hyperuricemia thiab gouty mob caj dab. Yog li ntawd, kev tshawb nrhiav cov ntsiab lus xanthine hauv lub cev tuaj yeem pab kuaj thiab txheeb xyuas cov kab mob cuam tshuam.
XanthineFeem ntau yog siv rau hauv kev tshawb fawb biochemical thiab organic synthesis, yog ib qho nruab nrab ntawm cov tshuaj theobromine, thiab tseem tuaj yeem siv los npaj lwm cov xanthine analogues. Feem ntau xanthine tebchaw muaj xws li caffeine, theophylline thiab theobromine. Caffeine thiab theophylline feem ntau yog siv los ua cov tshuaj adenosine antagonists los txo qhov mob lossis ua rau mob hawb pob. Txij li thaum caffeine thiab theophylline ob leeg muaj ib tug niam txiv qauv xanthine, ntau cov kev tshawb fawb tau pib ua ke xanthine tebchaw raws li adenosine receptor antagonists, tshwj xeeb tshaj yog xanthine tebchaw nrog 8- chaw hloov chaw yog txaus siab.
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COA
| Cov khoom kuaj | Txuj | Cov qhabnias xeem |
| Yam ntxwv | Yuav luag dawb mus rau me ntsis yellowish hmoov | Ua raws |
| Kev txheeb xyuas | Ua raws | Ua raws |
| Qhov tseeb | Xim tsis muaj xim rau daj ntseg daj | Ua raws |
| Poob rau ziab | Tsawg dua lossis sib npaug rau 1.0% | Ua raws |
| Purity | Ntau dua lossis sib npaug rau 99.0% | Ua raws |
| Nyias txheej chromatography | Ua raws | Ua raws |
| Sulfated tshauv | Tsawg dua lossis sib npaug rau 0.2% | Ua raws |
| Cov hlau hnyav | Tsawg dua lossis sib npaug li 10ppm | Ua raws |
| Assay | Ntau dua lossis sib npaug rau 98.0% | 99% |
| Xaus | Ua raws li kev lag luam specification | |
Qhov ceev 1.6 ± 0.1g / cm3
Boiling point 834.9ºC ntawm 760 mmHg
Melting point 300 degree
Cov mis mos molecular C5H4N4O2
Molecular hnyav 152.111
Flash point 458.7ºC
Dej soluble NH4OH: dawb soluble
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Dab tsi yog alkaloids thiab xanthines?
Derivatives ntawm xanthine (paub sib sau ua xanthines) yog ib pab pawg ntawm alkaloids feem ntau siv rau lawv cov teebmeem xws li stimulants me me thiab ua bronchodilators, tshwj xeeb hauv kev kho mob hawb pob lossis mob khaub thuas.
Dab tsi yog xanthine thiab hypoxanthine?
Hypoxanthine thiab xanthine yog cov khoom nyob rau hauv txoj kev ntawm purine degradation. Purine yog catabolized los ntawm ob peb intermediates rau hypoxanthine uas hloov mus rau xanthine, ua rau uric acid, ib yam khoom kawg ntawm purine metabolism hauv tib neeg.
Puas yog caffeine yog xanthine?
Caffeine yog xanthine alkaloid pom nyob rau hauv cov dej tsis muaj cawv xws li tshuaj yej, kas fes, thiab cocoa.
Xa koj Cov Lus Nug kom paub meej ntxiv, Nyem email:sales4@faithfulbio.com
vim li cas xaiv peb
Peb lub Hoobkas
Pob
Shipping Txoj Kev
|
Tsheb thauj mus los |
Shipping txoj kev |
Cargo hnyav xav tau |
Qhov zoo |
|
3-7 hnub |
DHL, Lub teb chaws Yelemees DHL, Lub teb chaws Yelemees DPD, |
Haum rau qis dua 50kg. |
Peb muaj warehouses nyob rau hauv lub teb chaws Yelemees thiab California, teb chaws USA, thiab cov neeg muas zaub nyob rau hauv cov teb chaws Europe thiab America yuav txaus siab rau xa cov khoom ncaj qha los ntawm ob qhov chaw. |
|
7-15 hnub |
Los ntawm Cua |
Haum rau ntau tshaj 50kg. |
|
|
15-60 hnub |
Los ntawm Hiav Txwv |
Haum rau ntau tshaj 500kg. |
Xa koj Cov Lus Nug kom paub meej ntxiv, Nyem email:sales4@faithfulbio.com
Cim npe nrov: xanthine hmoov cas 69-89-6, Suav teb, lwm tus neeg, manufacturers, hoobkas, customized, lag luam wholesale, yuav, nqe, tej, ntshiab, tsim, luv nqi, muag, Tshuag, dawb qauv, raw hmoov, raw khoom, ua nyob rau hauv Tuam Tshoj