Cov khoom lag luam
Dab tsi yog cov kab ntawv ua haujlwm purine hmoov cas? 120-73-0?
Purine, tseem hu ua 7H-imidazo [4, {3}} d] Pyrimidine nrog lub Heterocyclic qhov hnyav, yog qhov hnyav molecular ntawm 120.11 g / mol. Nws zoo li tsis muaj xim rau daj ntseg daj crystalline hmoov nrog lub ntsiab lus melted ntawm 214-217 degree. Soluble me ntsis hauv dej (400 mg / l ntawm 20 degree), nws tau nyeem tag hauv dej kub, ethanol, thiab alkaline daws. Nws PKA tus nqi ntawm 2.3 ntawm 20 degree thiab tus yam ntxwv UV nqus (λMAX {14}} nm) ua rau nws muaj txiaj ntsig zoo.
Due to the electron-withdrawing effect of the pyrimidine ring on the imidazole ring, purine exhibits weaker acidity than imidazole but stronger alkalinity than pyrimidine. Nws lub conjugated qauv imparts aromaticity, txhim kho nws cov ntxim nyiam rau nucleophilic hloov kev coj ua.
Cov ntaub ntawv yooj yim
Pharmaceutical Qib Purine Hmoov Li 120-73-0
| Cas | 120-73-0 |
| Einecs | 204-421-2 |
| Molecular Cov Qauv | C5H4N4 |
| Tus hniav loj | 120.11 |
| Ceev | 1.3106 |
| Melting taw tes | {{0 {}} degree (lit.) |
| Boling Taw | 214.09 degree |
| Flash point | 85 Qib |
| Dej solubility | 400 g/L (20 ºC) |
| So | Dej Soluble 400G / L (20 degree) |
| Vapor presure | {{0 {}}. 0976mmmhg ntawm 25 degree |
Kev siv
Hauv cov ntawv thov zaub mov noj, purine compounds xws li caffeine thiab theopylline pabcuam raws li cov khoom noj ntxiv thiab cov zaub mov ua haujlwm. Kev lag luam tsis muaj zog, purine derivatives ua haujlwm cov khoom xyaw hauv cov tshuaj ntsuab thiab tshuaj tua kab; Piv txwv li, Zhejiang Dapeng Carpeecutical ua 6-} benzylaminopurine rau cov kev cai cog kev cog ntoo. Ib qho ntxiv, Guanine / Vermiculite 2D Nanocomposites tau siv hauv cov av noo los saib txiv ntoo kom zoo.
Cov Ntaub Ntawv Kev Nyab Xeeb
Purine nws tus kheej muaj tsawg toxicity, tab sis lub sij hawm ntev kev high-purine cov khoom noj uas siab huv yuav ua rau muaj kev nce siab uth acid thiab ua rau gout. Nws derivatives xws li {2}} mercaptopurine muaj pob txha pob txha pob txha thiab cov qos yuav tsum tau tswj hwm. Tsis txhob nqus plua plav ntawm hmoov av lossis tiv toj nrog tawv nqaij thaum ua haujlwm, thiab nws raug nquahu kom siv cov khoom tiv thaiv tiv thaiv. Qhov chaw ib puag ncig (xws li kev noj zaub mov, kev rog, thiab yeeb) tuaj yeem cuam tshuam puline metabolism thiab nce kev pheej hmoo ntawm hyperuricemia.
Tuam txhab tau
Gneebioyog kev ua lag luam-taw qhia thiab tsim kho cov tuam txhab tshuaj tsim kho tshiab. Los ntawm kev tsim kho thev naus laus zis, peb tau cog lus rau kev daws cov txheej txheem kev ua haujlwm ntawm R & D thiab cov khoom lag luam zoo thiab cov kev pabcuam tsawg rau lub lag luam hauv ntiaj teb.
Peb cov khoom nrov muaj xws li cov organic tshuaj:CAS: 3327-22-8 CTA, Ua 27126-76-7 phenyliodosohydroxy tosylate, catalyst:CAS 110-02-1 thiophene, thiab lwm yam.
Cov FAQ
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Cim npe nrov: Kws Tshuaj Pauv Purine Hmoov Li {{}}}, Tuam Tshoj Tuam Tshoj Kws Tsim Tshuaj Purine Hmoov Li {} Cov chaw tsim khoom, cov chaw tsim khoom, Hoobkas
