(±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid Cas:53188-07-1 budada
| Lambarka buugaagta | XD90174 |
| Magaca Alaabta | (±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid |
| CAS | 53188-07-1 |
| Qaanuunka molecular | C14H18O4 |
| Miisaanka Molecular | 250.29 |
| Faahfaahinta Kaydinta | Ambient |
Tilmaamaha Alaabta
| Muuqashada | budo |
| Asay | 99% |
| Cufnaanta | 1.219±0.06 g/cm3 (20 ºC 760 Torr), |
| barta dhalaalaysa | 187-189 °C (Iftiin) |
| Barta karkarinta | 313.42°C (qiyaasta qallafsan) |
| Barta toosan | 171°C |
| Tusmada dib-u-celinta | 1.4970 (qiyaas) |
| Solubility | Aad u yar oo milmay (0.58 g/L) (25ºC) |
| Solubility | biyo yar oo milmay |
Dulmar: Quinol dimethacrylate waa fitamiin E-dabiici ah oo biyo-milmi karaQuinol dimethacrylate waxaa laga soo diyaarin karaa 1,4-dihydroxy-2,3,5-trimethylbenzene, aqueous formalin iyo methyl methacrylate sida alaabta bilowga ah.
Diyaarinta: In weel galaas ah oo 200ml ah oo lagu rakibay kondenser, ku dar 16.7g (59.1mmolCCM, daahir kiimikaad: 93.5%) gudaha CCM ee kor lagu diyaariyay), ku rid 16.7g methanol, 3.3g (82.5mmol) NaOH iyo 50 g oo biyo ah , iyo isku dar ah waxaa lagu sakhiray hydrolysis of ester at 80 ° C hoos jawi nitrogen.Ku walaaq hal saac oo walaaqaya.Xalka falcelinta ayaa lagu sifeeyay isla heerkul si looga saaro walxaha aan milmayn, ka dibna lagu daray hoos u dhigista xal acidic ah oo la helay iyadoo lagu milmay 11.7 g (85.9 mmol) oo ah potassium hydrogen sulfate 50 g oo biyo ah muddo hal saac ah.Ku hay heerkul ah 80 ° C.weel galaas ah oo 300 ml ah oo lagu rakibay kondheye.Ka dib markii daawaynta dhexdhexaadinta la dhammeeyey, kiristaalo ayaa isla markiiba soo degay markii wax walaaqda la joojiyay, isku darka falcelinta ayaa loo oggolaaday inay istaagto.Kariimaha waxaa lagu sifeeyay 80 ° C, laba jeer ayaa lagu maydhay 50 ml oo biyo ah, ka dibna lagu qallajiyey faakuum 80 ° C.Dareen-celinta waxaa la sameeyay 24 saacadood si loo helo 14.5 g (57.9 mmol) ee 6-hydroxy-2,5,7,8-tetramethylbenzo-2-carboxylic acid, quinodimethacrylate (hadda dambe loo yaqaan CCA) (Soosaar: 98.3%, daahirnimada kiimikada: 99.7%).
Dhaqdhaqaaqa Nafleyda: Trolox waa analoog-biyo-milmi leh oo fitamiin E ah oo leh astaamo antioxidant awood leh.Trolox sidoo kale waa horjooge awood leh oo burburiya xuubka.
Isticmaala: Antioxidant oo ka soo jeeda fiitamiin E-biyo-milmi leh oo leh xagjirnimo bilaash ah iyo firfircoonida antioxidant.
