Thymolphthalein CAS 125-20-2

URUBANZA:125-20-2

Inzira ya molekulari:C28H30O4

Uburemere bwa molekile:430.54

Umubare wa EINECS:204-729-7

Synonym:3,3-bis (4-hydroxy-2-methyl-5- (1-methylethyl) fenyl) -1 (3H) -Isobenzofuranone; 3,3-bis [4-hydroxy-2-methyl-5- (1-methylethyl) fenyl] -1 (3h) -isobenzofuranon; Thymolphthalein, isesengura rya ACS; Thymolphthalein, icyerekezo, cyera; THYMOLPHTHALEINREAGENT (ACS); THYMOLPHTHALEINSOLUTION

Reka ubutumwa bwawe

Ibicuruzwa birambuye

Kuramo

Ibicuruzwa

Niki Thymolphthalein CAS 125-20-2?

Izina ry'ubumenyi rya Thymolphthalein ni "3,3-bis (4-hydroxy-5-isopropyl-2-methylphenyl) -phthalide", ni reagent. Imiti yimiti ni C28H30O4, naho uburemere bwa molekile ni 430.54. Nifu ya kirisiti yera. Irashobora gushonga byoroshye muri ether, acetone, acide sulfurike nigisubizo cya alkaline, kandi ntigishonga mumazi. Bikunze gukoreshwa nkibipimo bya aside-shingiro, kandi pH ihinduka ryamabara ni 9.4-10.6, naho ibara rihinduka kuva ibara ritagira ibara ryubururu. Iyo ikoreshejwe, akenshi itegurwa mumuti wa 0.1% 90%. Irategurwa kandi nibindi bipimo kugirango ikore ibipimo byoroheje bihujwe kugirango ibara ryayo rihindurwe kandi bigaragare neza.

Ibisobanuro

INGINGO	STANDARD	IGISUBIZO
Kumenyekanisha	Ifu yera-yera	Bikubiyemo
¹H-NMR	Ikirangantego kimwe hamwe	Pass
HPLC	≥98%	99,6%
Gutakaza kumisha	1% max	0.24%

Gusaba

Thymolphthalein ikoreshwa nkikimenyetso cya acide-fatizo, hamwe na pH ihindura ibara rya 9.4 kugeza 10.6, naho ibara rihinduka kuva ibara ritagira ibara ryubururu. Iyo ikoreshejwe, akenshi itegurwa nkigisubizo cya 0.1% 90% ya Ethanol, kandi akenshi ivangwa nibindi bipimo kugirango ikore ibipimo bivanze kugirango ibara ryayo rihindurwe kandi bigaragare neza kubireba. Kurugero, igipimo cyakozwe mukuvanga 0.1% yumuti wa Ethanol wiyi reagent hamwe na 0.1% ya Ethanol yumuti wa fenolphthalein nta ibara rifite mumuti wa acide, umutuku mubisubizo bya alkaline, hanyuma ukazamuka kuri pH 9.9 (aho uhindura amabara), aribyo biroroshye cyane kubyitegereza.