I-Thymolphthalein CAS 125-20-2

Isithombe Esivelele se-Thymolphthalein CAS 125-20-2

I-CAS:125-20-2

Ifomula yama-molecule:C28H30O4

Isisindo sama-molecule:430.54

Inombolo ye-EINECS:204-729-7

Igama elifanayo:3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-1(3H)-Isobenzofuranone; 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3h)-isobenzofuranon; I-Thymolphthalein, yokuhlaziya i-ACS; I-Thymolphthalein, inkomba, emsulwa; I-THYMOLPHTHALEINREANT(ACS); ISIXAZULULO SE-THYMOLPHTHALE

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Amathegi Omkhiqizo

Iyini i-Thymolphthalein CAS 125-20-2?

Igama lesayensi le-Thymolphthalein lithi "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", okuyi-reagent ephilayo. Ifomula yamakhemikhali yi-C28H30O4, kanti isisindo sama-molecule singama-430.54. Iyimpuphu emhlophe ekristalu. Incibilika kalula ku-ether, i-acetone, i-sulfuric acid kanye nezixazululo ze-alkaline, futhi ayincibiliki emanzini. Ivame ukusetshenziswa njengesibonakaliso se-acid-base, kanti ububanzi bayo bokushintsha kombala we-pH bungu-9.4-10.6, kanti umbala uyashintsha usuka kokungenambala uye koluhlaza okwesibhakabhaka. Uma isetshenziswa, ivame ukulungiswa ibe yisisombululo se-ethanol esingu-0.1% 90%. Ivame futhi ukulungiswa nezinye izinkomba ukuze kwakhiwe isibonakaliso esithambile esihlanganisiwe ukuze kwenziwe ububanzi bayo bokushintsha kombala bube buncane futhi ukubonwa kucace.

Imininingwane

ITEM	IZINGA	UMPHUMELA
Ukuhlonza	Impuphu emhlophe kuya kwemhlophe kakhulu	Imithetho
¹I-H-NMR	I-spectrum efanayo enokubhekisela	Iphasi
Ubumsulwa be-HPLC	≥98%	99.6%
Ukulahlekelwa ekomiseni	1% ubuningi	0.24%

Isicelo

I-Thymolphthalein ivame ukusetshenziswa njengesibonakaliso se-acid-base, enobubanzi bokushintsha kombala be-pH obungu-9.4 kuya ku-10.6, kanye nokushintsha kombala kusuka kokungenambala kuya koluhlaza okwesibhakabhaka. Uma isetshenziswa, ivame ukulungiswa njengesixazululo se-ethanol esingu-0.1% 90%, futhi ivame ukuhlanganiswa nezinye izinkomba ukuze kwakhiwe isibonakaliso esixubile ukuze kwenziwe ububanzi bayo bokushintsha kombala bube buncane futhi bucace ukuze bubonwe. Isibonelo, isibonakaliso esenziwe ngokuxuba isixazululo se-ethanol esingu-0.1% salesi sidakamizwa nesisombululo se-ethanol esingu-0.1% se-phenolphthalein asinambala esixazululweni esine-acid, sinsomi esixazululweni se-alkaline, futhi sikhuphuke ku-pH 9.9 (indawo yokushintsha kombala), okulula kakhulu ukuyibona.