Thymolphthalein CAS 125-20-2

CAS:125-20-2

Cov mis molecular:C28H30O4

Qhov hnyav ntawm cov molecule:430.54

Tus lej EINECS:204-729-7

Lub ntsiab lus: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; Thymolphthalein, rau kev tshuaj xyuas ACS; Thymolphthalein, qhia, ntshiab; THYMOLPHTHALEINREAGENT (ACS); THYMOLPHTHALEINSOLUTION

Sau Koj Cov Lus

Cov Khoom Qhia Txog Khoom

Rub tawm

Cov Cim Npe Khoom

Thymolphthalein CAS 125-20-2 yog dab tsi?

Thymolphthalein lub npe scientific yog "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", uas yog ib qho organic reagent. Cov mis tshuaj yog C28H30O4, thiab qhov hnyav molecular yog 430.54. Nws yog ib qho hmoov dawb crystalline. Nws yooj yim soluble hauv ether, acetone, sulfuric acid thiab alkaline solutions, thiab insoluble hauv dej. Nws feem ntau yog siv ua ib qho acid-base indicator, thiab nws cov pH hloov xim ntau yog 9.4-10.6, thiab xim hloov ntawm xim tsis muaj xim mus rau xiav. Thaum siv, nws feem ntau yog npaj rau hauv 0.1% 90% ethanol kua. Nws kuj feem ntau npaj nrog lwm cov cim qhia los tsim ib qho cim qhia ua ke kom ua rau nws cov xim hloov xim nqaim dua thiab qhov kev soj ntsuam meej dua.

Cov Lus Qhia Tshwj Xeeb

YAM KHOOM	TUS QAUV	TXAUS SIAB
Kev txheeb xyuas	Dawb rau cov hmoov dawb dawb	Ua raws li
¹H-NMR	Cov spectrum zoo sib xws nrog kev siv	Dhau
HPLC kev huv huv	≥98%	99.6%
Poob thaum ziab	1% siab tshaj	0.24%

Daim Ntawv Thov

Thymolphthalein feem ntau siv ua qhov qhia txog acid-base, nrog rau pH hloov xim ntawm 9.4 txog 10.6, thiab hloov xim ntawm tsis muaj xim mus rau xiav. Thaum siv, nws feem ntau npaj ua 0.1% 90% ethanol kua, thiab feem ntau sib xyaw nrog lwm cov cim qhia los ua ib qho cim qhia sib xyaw kom ua rau nws qhov hloov xim nqaim dua thiab pom tseeb dua. Piv txwv li, ib qho cim qhia ua los ntawm kev sib xyaw 0.1% ethanol kua ntawm cov tshuaj reagent no nrog 0.1% ethanol kua ntawm phenolphthalein tsis muaj xim hauv cov kua qaub, ntshav hauv cov kua alkaline, thiab nce ntawm pH 9.9 (qhov hloov xim), uas yooj yim heev rau kev pom.