3-O-Ethyl-L-ascorbic acid CAS86404-04-8
cov lus qhia tshwj xeeb
| YAM KHOOM | COV LUS QHIA |
| Qhov tsos | Hmoov dawb los yog daj |
| Kev Ntsuas | ≥98.5% |
| Dej | ≤1.0% |
| chroma | ≤0.1 |
| pH | 3.5-5.0 |
| qhov chaw yaj | 111.0 -116.0C |
| Pb | ≤10ppm |
| As | ≤2ppm |
| Hg | ≤1ppm |
| Cr | ≤5ppm |
| Tag Nrho cov kab mob csuav | ≤100cfu/g |
| Cov pwm thiab Cov poov xab | ≤10cfu/g |
| Thermothelial Cov kab mob coliform/g | Tej zaum yuav tsis pom |
| Staphylococcus aureus /g | Tej zaum yuav tsis pom |
| P.Aeruginosa /g | Tej zaum yuav tsis pom |
| XAUS LUS | COV TXiaj Ntsig Ua Raws Li Cov Qauv Lag Luam |
Kev Siv
Ethyl ascorbic acidyog ib qho vitamin C derivative uas muaj txiaj ntsig zoo heev. Nws tsis yog tsuas yog ruaj khov heev xwb, ua ib qho vitamin C derivative uas tsis hloov xim, tab sis kuj yog ib qho amphiphilic substance nrog ob qho tib si lipophilic thiab hydrophilic properties, uas ua rau nws dav dua, tshwj xeeb tshaj yog hauv cov tshuaj siv txhua hnub. 3-O-Ethyl ascorbic acid ether tuaj yeem nkag mus rau hauv stratum corneum thiab ncav cuag dermis. Thaum nws nkag mus rau hauv lub cev, nws yooj yim decomposed los ntawm biological enzymes hauv lub cev, yog li ua rau muaj cov haujlwm biological ntawm vitamin C.
Ethyl ascorbic acid (VC ethyl ether)yog ib qho amphiphilic vitamin C derivative uas yog ob qho tib si lipophilic thiab hydrophilic. Nws tsis yog tsuas yog khaws cov haujlwm redox ntawm vitamin C tab sis kuj ruaj khov heev. Nws yog ib qho vitamin C derivative uas tsis hloov xim. Ntxiv mus, ua ib qho amphiphilic substance, nws yooj yim heev rau siv hauv cov formulations. Dab tsi ntxiv, nws tuaj yeem nkag mus rau hauv stratum corneum thiab nkag mus rau hauv dermis yooj yim dua. Thaum nws nkag mus rau hauv daim tawv nqaij, nws yooj yim decomposed los ntawm biological enzymes los ua haujlwm ntawm vitamin C, yog li txhim kho nws bioavailability.
3-O-Ethyl ascorbic acid ether (ethyl ascorbic acid)yog ib yam khoom uas yaj tau hauv roj thiab dej. Qhov no tso cai rau cov neeg tsim khoom ntxiv rau hauv cov roj theem lossis cov dej theem, thiab nws kuj tuaj yeem ntxiv rau ntawm qhov kub siab lossis qis, ua rau nws yooj yim heev rau siv. Qhov tseem ceeb tshaj, qhov khoom amphiphilic no ua rau nws nkag mus rau hauv stratum corneum yooj yim dua thiab nkag mus rau hauv dermis, yog li ua rau nws cov teebmeem biological, uas tsis ua tiav rau lwm cov vitamin C derivatives. Nws tuaj yeem tiv thaiv kev ua haujlwm ntawm tyrosinase los thaiv kev tsim melanin; nws muaj cov teebmeem dawb thiab tshem tawm freckle (thaum ntxiv ntawm 2%); nws tuaj yeem tiv taus kev o los ntawm lub hnub ci thiab muaj cov teebmeem antibacterial thiab anti-inflammatory; tib lub sijhawm, nws tuaj yeem txhim kho cov tawv nqaij tsis muaj zog thiab tsis muaj zog, muab cov tawv nqaij nrog gloss thiab elasticity, kho cov haujlwm ntawm cov hlwb tawv nqaij, thiab txhawb kev tsim cov collagen.
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Koom nrog Pawg 8 cov khoom txaus ntshai 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.
