.
| Umubare wa Cataloge | XD90174 |
| izina RY'IGICURUZWA | (±) -6-Hydroxy-2,5,7,8-tetramethylchromane-2-aside aside |
| URUBANZA | 53188-07-1 |
| Inzira ya molekulari | C14H18O4 |
| Uburemere bwa molekile | 250.29 |
| Ibisobanuro birambuye | Ibidukikije |
Kugaragaza ibicuruzwa
| Kugaragara | ifu |
| Assay | 99% |
| Ubucucike | 1.219 ± 0.06 g / cm3 (20 ºC 760 Torr), |
| Ingingo yo gushonga | 187-189 ° C (lit.) |
| Ingingo yo guteka | 313.42 ° C (igereranya) |
| Ingingo ya Flash | 171 ° C. |
| Ironderero | 1.4970 (igereranya) |
| Gukemura | Byoroshye cyane (0.58 g / L) (25 ºC) |
| Gukemura | amazi make ashonga |
GUKURIKIRA: Quinol dimethacrylate ni vitamine iboneka mu mazi E. Vitamine zishonga mu mazi ni icyiciro cy’ibinyabuzima kidafite akamaro mu gukomeza ibikorwa bisanzwe byubuzima bwumubiri wumuntu kandi bisaba bike.Quinol dimethacrylate irashobora gutegurwa kuva 1,4-dihydroxy-2,3,5-trimethylbenzene, formine yo mu mazi na methyl methacrylate nkibikoresho byo gutangira.
Gutegura: Mubikoresho byikirahure 200mL bifite kondereseri, ongeramo 16.7g (59.1mmolCCM, ubuziranenge bwimiti: 93.5%) muri CCM yateguwe haruguru), shyira metani 16.7g, 3.3g (82.5mmol) ya NaOH na 50 g yamazi , kandi imvange yakorewe hydrolysis ya ester kuri 80 ° C munsi yikirere cya azote.Kangura isaha imwe hamwe no gukurura.Igisubizo cya reaction cyayungurujwe mubushuhe bumwe kugirango ikureho ibintu bitangirika, hanyuma byongeweho bitonyanga kumuti wa acide wabonetse ushonga 11,7 g (85.9 mmol) ya potasiyumu hydrogène sulfate muri g 50 zamazi mugihe cyisaha imwe.Gumana kuri 80 ° C.muri ml 300 yikirahure yashyizwemo kondereseri.Nyuma yo kuvura kutabogama birangiye, kristu yaguye ako kanya iyo kubyutsa byahagaritswe, kandi imvange ya reaction yemerewe guhagarara.Kirisiti zayunguruwe kuri 80 ° C, yozwa kabiri n'amazi 50 mL, hanyuma yumishwa munsi ya vacu kuri 80 ° C.Igisubizo cyakozwe mu masaha 24 kugirango haboneke g 14,5 (57.9 mmol) ya 6-hydroxy-2,5,7,8-tetramethylbenzo-2-acide karubasi, acide quinodimethacrylate (aha bita CCA) (Umusaruro: 98.3%, ubuziranenge bwimiti: 99.7%).
Igikorwa cyibinyabuzima: Trolox nigereranya ryamazi ya vitamine E ifite antioxydants ikomeye.Trolox nayo ni inhibitor ikomeye yo kwangiza membrane.
Gukoresha: Antioxydants ikomoka kuri vitamine E ikabura amazi hamwe na radical scavenging yubusa hamwe nibikorwa bya antioxydeant.
