Arbutin CAS 497-76-7 nrog cov ntaub ntawv ntxaws ntxaws
Cov ntsiab lus
| Cov lus sib xws | Hydroquinoneβ-D-glucopyranoside; Arbutin (ntuj); 4-(β-D-Glucopyranosyloxy)phenol; arbutin, beta-arbutin; 4-hydroxypheChemicalbooknylβ-D-galactopyranoside; Arbutyne; Uva, p-Arbutin; Hydroquinone-beta-D-glucoside4-Hydroxyphenylbeta-D-Glucopyranoside |
| CAS | 497-76-7 |
| Cov Qauv Molecular | C12H16O7 |
| Qhov Hnyav Molecular | 272.25 |
| Cov Qauv Tshuaj |
|
| Qhov tsos | Hmoov dawb los yog siv lead ua, yooj yim soluble hauv dej kub, ethanol, me ntsis soluble hauv dej txias |
| Kev Ntsuas | 99.5% |
Cov Lus Qhia Tshwj Xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov tsos | Dawb crystalline hmoov |
| Kev Ntsuas | 99.5% Min |
| Qhov kub yaj | 198.5~201.5℃ |
| Tus nqi pH ntawm 1% cov kua dej | 5.0 ~ 7.0 |
| Kev tig kho qhov muag tshwj xeeb | 【α】D 20 = -66±2º |
| Arsenic | ≤2 ppm |
| Hydroquinone | ≤10 ppm |
| Hlau hnyav | ≤10 ppm |
| Poob thaum ziab | ≤0.5% |
| Cov seem ntawm qhov hluav taws kub | ≤0.5% |
| Kab mob | Cov kab mob ： ≤300cfu / gCov pwm: ≤100cfu / g |
| Xaus lus | Cov txiaj ntsig tau raws li cov qauv |
Kev Siv
Arbutin muaj cov nyhuv ua rau daim tawv nqaij ci ntsa iab. Nws tuaj yeem nkag mus rau hauv daim tawv nqaij sai sai yam tsis cuam tshuam rau cov hlwb tawv nqaij. Nws tuaj yeem ua ke nrog tyrosine uas ua rau melanin tsim, ua kom zoo thaiv kev ua haujlwm ntawm tyrosine thiab kev tsim melanin, thiab ua kom nrawm dua qhov kev rhuav tshem thiab tshem tawm melanin. Tsis tas li ntawd, arbutin kuj tseem tuaj yeem tiv thaiv daim tawv nqaij ntawm cov dawb radicals thiab muaj hydrophilicity zoo.
Ntim thiab Xa Khoom
Ntim rau hauv lub hnab yas thiab cov hnab ntawv txhuas uas muaj ntaub nqus tsev, 1kg txhua lub. Arbutin yog hygroscopic, thov khaws cia rau qhov chaw txias thiab qhuav.
Yog khoom siv thiab xa tau los ntawm hiav txwv lossis cua
khaws cia thiab cia
Kev siv tau: 2 xyoos
Qhov cua txias qis kom qhuav; nrog kua qaub, ammonia ntsev khaws cia cais
Peev Xwm: 200MT ib xyoos, tam sim no peb tab tom nthuav peb cov kab ntau lawm.
Cov Lus Nug Feem Ntau
Q: Qhov tsawg kawg nkaus kom muaj nuj nqis rau Arbutin CAS 497-76-7 yog dab tsi?
R:1kg
Q: Yog tias koj tuaj yeem txais cov khoom ntim tshwj xeeb rau Arbutin CAS 497-76-7?
R: Yog, peb tuaj yeem npaj cov khoom raws li tus neeg yuav tsum tau ua.
Q: Puas siv tau Arbutin CAS 497-76-7 rau cov khoom siv pleev kom zoo nkauj?
R: Muaj tseeb tiag
Q: Koj tuaj yeem lees txais kev them nyiaj dab tsi rau Arbutin CAS 497-76-7?
R: LC, TT, WESTERN UNION thiab lwm yam.
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