Ascorbyl glucoside / CAS: 129499-78-1
Kev Piav Qhia Luv:
Lub npe khoom: Ascorbyl glucoside
CAS: 129499-78-1
MF: C12H18O11
MW: 338.26
QAUV:
Qhov Ceev: 1.83 ± 0.1 g/cm3 (Kwv Yees)
Melting point: 158-163 ℃
cov lus qhia tshwj xeeb
| Khoom | Skev piav qhia meej |
| Qhov tsos | Daim ntawv dawb, xim dawb crystalline hmoov |
| Cov ntsiab lus yog 99.5%. | ≥99.5 |
| Lub ncov yam ntxwv infrared | 3300cm'1770cm1700cm'1110cm
|
| Melting point, ° C | 158-163 |
| PH | 2.0-2.5 |
| Kev sib hloov tshwj xeeb | +186.0-+188.0 |
| Kev meej meej | Cov lus teb yuav tsum meej. |
| Xim ntawm cov kua (A, 420 nm) | 0.010 |
| Poob thaum ziab | 0.5 |
| Cov seem ntawm kev hlawv | 0.2 |
| Vitamin C pub dawb | 0.1 |
| Glucose Dawb,% | 0.1 |
Kev Siv
ascorbic acid glucoside, tseem hu ua VC glucoside, nrog lub npe scientific OAD-pyran glucosyl-L-ascorbic acid (2-OaD-glucopyranosyl-L-ascorbic acid, luv ua AA-2G), yog ib qho derivative ntawm VC nrog ib tug txheeb ze molecular hnyav ntawm 338.27. Lub melting point yog 158.5-159.5 ℃. Vim muaj qhov tsis zoo ntawm VC xws li tsis ruaj khov thiab yooj yim oxidation, ascorbic acid glucoside, ib yam khoom hloov ntawm VC, tau muab los. Nws tuaj yeem hloov VC ua acidulant, txo tus neeg sawv cev, antioxidant, bleaching tus neeg sawv cev thiab stabilizer, thiab yog dav siv nyob rau hauv cov tshuaj pleev ib ce, khoom noj thiab tshuaj teb.
Tom qab ascorbic acid glucoside hloov mus ua vitamin C thiab nkag mus rau hauv cov tawv nqaij, nws txo qhov kev tsim ntawm melanin los ntawm kev txwv tsis pub tyrosinase ua haujlwm. Kev txwv tsis pub tyrosinase ua rau txo qis dopaquinone, uas yog ib qho khoom nruab nrab hauv kev tsim melanin. Lwm qhov txiaj ntsig ntxiv yog tias nws tib lub sijhawm hloov dopaquinone mus ua levodopa, txo cov melanin uas twb tsim lawm thiab yog li txo cov xim tawv nqaij. 2. Tiv taus kev puas tsuaj UV thiab tiv thaiv kev puas tsuaj ntawm ultraviolet radiation rau cov hlwb. Tom qab ascorbic acid glucoside hloov mus ua vitamin C, nws tuaj yeem txo cov dawb radicals tsim los ntawm ultraviolet radiation hauv daim tawv nqaij, txo qhov kev puas tsuaj ntawm daim tawv nqaij thiab ua lub luag haujlwm tiv thaiv rau daim tawv nqaij hauv cov khoom siv tshuaj pleev thaiv hnub.
Ascorbic acid glucoside yog ib qho ntawm cov khoom siv ua kom dawb uas tau pom zoo los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Noj Qab Haus Huv thiab tau lees paub tias yog cov vitamin C ruaj khov tshaj plaws. Nws tseem yog cov khoom xyaw ua kom dawb uas siv ntau tshaj plaws los ntawm cov hom loj tam sim no. Piv txwv li, L 'Oreal siv C-glycoside derivatives ua ke nrog lwm cov khoom los tiv thaiv lossis kho cov cim ntawm kev laus hauv lub cev lossis daim tawv nqaij ntawm lub ntsej muag. Ascorbic acid glucoside tsis yog tsuas yog muaj cov txiaj ntsig zoo rau kev ua kom dawb xwb, tab sis kuj muaj cov khoom siv tshuaj ruaj khov thiab tsis ua rau khaus rau daim tawv nqaij. Nws siv dav hauv cov tshuaj pleev ib ce hauv tsev thiab txawv teb chaws thiab tau lees paub los ntawm pej xeem. Cov lus hauv qab no teev cov xwm txheej siv ntawm cov vitamin C derivatives hauv cov tshuaj pleev ib ce.
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
