Arbutin CAS 497-76-7 nrog cov ncauj lus kom ntxaws
Paub meej
| Synonym | Hydroquinoneβ-D-glucopyranoside;Arbutin (natural); 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 : kuv |
| Molecular Fomula | C12H16O7 |
| Molecular Luj | 272.25 Nws |
| Chemical Structure |
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| Qhov tshwm sim | Cov hmoov dawb los yog siv lead ua, yooj yim soluble hauv dej kub, ethanol, me ntsis soluble hauv dej txias |
| Assay | 99.5% |
Specification
| Yam khoom | Specifications |
| Qhov tshwm sim | Dawb crystalline hmoov |
| Assay | 99.5% Min |
| Melting point | 198.5 ~ 201.5 ℃ |
| pH tus nqi ntawm 1% aqueous tov | 5.0 ~ 7.0 |
| Kev sib hloov kho qhov muag tshwj xeeb | 【α】D 20 = -66 ± 2º |
| Arsenic | ≤ 2 ppm |
| Hydroquinone | ≤10ppm |
| Hnyav hlau | ≤10ppm |
| Poob rau ziab | ≤ 0.5% |
| Ignition residue | ≤ 0.5% |
| Kab mob | Cov kab mob: ≤300cfu / gCov kab mob: ≤100cfu / g |
| Xaus | Cov txiaj ntsig tau raws li cov qauv |
Kev siv
Arbutin muaj cov nyhuv brightening ntawm daim tawv nqaij.Nws tuaj yeem nkag mus rau hauv daim tawv nqaij sai sai yam tsis muaj kev cuam tshuam rau ntawm daim tawv nqaij.Nws tuaj yeem ua ke nrog tyrosine uas ua rau melanin ntau lawm, thaiv kev ua haujlwm ntawm tyrosine thiab tsim cov melanin, thiab ua kom lub decomposition thiab tshem tawm ntawm melanin.Tsis tas li ntawd, arbutin tuaj yeem tiv thaiv daim tawv nqaij los ntawm cov dawb radicals thiab muaj hydrophilicity zoo
Ntim thiab Shipping
Lub tshuab nqus tsev ntim rau hauv cov hnab ntawv aluminium thiab cov hnab yas lined, 1kg txhua.Arbutin yog hygroscopic, thov khaws cia rau hauv qhov chaw txias thiab qhuav.
belongs rau cov khoom siv thiab tuaj yeem xa los ntawm hiav txwv lossis huab cua
khaws cia thiab khaws cia
validity: 2 xyoos
Qhov cua kub kom qhuav;nrog acid, ammonia ntsev cia cais
Peev Xwm: 200MT ib xyoos twg, tam sim no peb tab tom nthuav peb cov kab ntau lawm.
FAQ
Q: Dab tsi yog qhov tsawg kawg nkaus txiav txim kom muaj nuj nqis rau Arbutin CAS 497-76-7
r:1kg ua
Q: Yog tias koj tuaj yeem txais cov pob tshwj xeeb rau Arbutin CAS 497-76-7?
R: Yog lawm, peb tuaj yeem npaj cov khoom raws li cov neeg siv khoom xav tau.
Q: Puas tuaj yeem siv Arbutin CAS 497-76-7 ntawm cov khoom siv tshuaj pleev ib ce?
R: Muaj tseeb tiag
Q: Koj tuaj yeem them nyiaj dab tsi rau Arbutin CAS 497-76-7?
R: LC, TT, WESTERN UNION thiab lwm yam.
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