Muaj cov khoom lag luam txaus, siab zoo thiab xa khoom sai. Ntau qhov ntau nrog luv nqi ntxiv.
Txhua yam kev xav tau, txais tos hu rau peb txhua lub sijhawm.
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Kev piav qhia
Khoom npe: Arbutin
CAS: 497-76-7 Nr
MF: C12H16O7
PIB: 272.25
PIB: 207-850-3
Melting point: 195-198 ° C
Alpha: -64 º (c = 3)
Kub taw tes: 375.31 ° C (kwv yees ntxhib)
Qhov ceev: 1.3582 (nruab nrab kwv yees)
Refractive index: -65.5 ° (C = 4, H2O)
Sensitive: Hygroscopic
PIB: 14,773
ib: 89673
Specification
| Khoom npe | |
| Qhov tshwm sim | Dawb crystalline hmoov |
| Purity | 99% min |
| MW | 272.25 Nws |
| MF | C12H16O7 |
Daim ntawv thov
1. Siv nyob rau hauv cov tshuaj raws li ib tug diuretic, urinary system tiv thaiv kab mob, kuj siv raws li ib tug xim photography tsim stabilizer, siv nyob rau hauv tshuaj pleev ib ce rau whitening, freckle, tu plaub hau, thiab lwm yam.
2. Ib qho glycosylated hydroquinone siv los kawm melatonin biosynthesis thiab ua ib qho inhibitor rau kev txheeb xyuas, paub qhov txawv thiab txheeb xyuas tyrosinase. Arbutin yog glycosylated hydroquinone muab rho tawm los ntawm cov nroj tsuag bearberry. Arbutin yog ib tug paub tyrosinase inhibitor, uas nyob rau hauv lem tiv thaiv kev tsim ntawm melanin. Arbutin feem ntau yog siv los ua cov tshuaj pleev xim rau hauv cov tshuaj pleev ib ce.
3. inhibit melanocyte tyrosinase kev ua si thiab inhibit melanin ntau lawm los ntawm inhibiting melanin synthase.
Cia
Muab kaw thiab khaws cia, muab tso rau hauv qhov chaw cua, qhov chaw qhuav
Post lub sij hawm: Aug-09-2022