PVP-K30 Cas: 9003-39-8 Funfun si funfun lulú funfun
| Nọmba katalogi | XD90232 |
| Orukọ ọja | PVP-K30 |
| CAS | 9003-39-8 |
| Ilana molikula | C8H15NO |
| Òṣuwọn Molikula | 141.2108 |
| Awọn alaye ipamọ | Ibaramu |
| Ti irẹpọ Owo idiyele koodu | 39059990 |
Ọja Specification
| Omi | <5% |
| Awọn irin ti o wuwo | <10ppm |
| pH | 3-7 |
| Aloku lori Iginisonu | <0.1% |
| Aldehydes | ti o pọju jẹ 0.05%. |
| Nitrojiini | 11.5 - 12.8% |
| Ifarahan | Funfun to yellowish funfun lulú |
| K iye | 27 - 32.4 |
| Hydrazine | 1.0% ti o pọju |
| Ayẹwo | 99% |
A ti ṣe iwadii iduroṣinṣin ti ara ti awọn kaakiri curcumin amorphous ati ipa ti awọn ibaraẹnisọrọ intermolecular curcumin-polymer ni idaduro crystallization.Curcumin jẹ akojọpọ awoṣe ti o nifẹ si bi o ṣe n ṣe awọn ifunmọ hydrogen inu ati intermolecular ninu gara.A structurally Oniruuru ṣeto ti amorphous pipinka polima ti a iwadi;poly (vinylpyrrolidone), Eudragit E100, carboxymethyl cellulose acetate butyrate, hydroxypropyl methyl cellulose (HPMC) ati HPMC-acetate succinate.Aarin-infurarẹẹdi spectroscopy ni a lo lati pinnu ati ṣe iwọn iwọn awọn ibaraẹnisọrọ curcumin-polymer.Iduroṣinṣin ti ara labẹ awọn ipo ayika ti o yatọ ni a ṣe abojuto nipasẹ diffraction X-ray powder.Iduroṣinṣin kemikali Curcumin jẹ abojuto nipasẹ UV-Vis spectroscopy.Iyasọtọ ti curcumin amorphous iduroṣinṣin nira ni aini awọn polima.Awọn polymers fihan pe o jẹ awọn inhibitors crystallization curcumin ti o munadoko ti o jẹ ki iṣelọpọ ti awọn kaakiri amorphous ri to;sibẹsibẹ, awọn polima ṣe afihan awọn agbara oriṣiriṣi pupọ lati ṣe idiwọ crystallization lakoko ibi ipamọ igba pipẹ.Curcumin intramolecular hydrogen bonding dinku iye ti isunmọ hydrogen pẹlu awọn polima;nitorinaa ọpọlọpọ awọn polima kii ṣe awọn inhibitors crystallization ti o munadoko pupọ.Iwoye, awọn polima ti fihan pe o jẹ awọn inhibitors crystallization, ṣugbọn idinamọ jẹ opin nitori isunmọ hydrogen intramolecular ninu curcumin, eyiti o yori si idinku ninu agbara awọn polima lati ṣe ajọṣepọ ni ipele molikula.
