Thymolphthalein CAS 125-20-2

CAS:125-20-2

Molecular formula:C28H30O4

Molecular uremu:430.54

EINECS nhamba:204-729-7

Shoko rakafanana: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,foranalysisACS;Thymolphthalein,chiratidzo,chakachena; THYMOLPHTHALEINREAGENT(ACS); THYMOLPHTHALEINSOLUTION

Siya Mharidzo Yako

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Chii chinonzi Thymolphthalein CAS 125-20-2?

Thymolphthalein's science name is "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", inova organic reagent. Iyo kemikari formula ndeye C28H30O4, uye molecular uremu ndeye 430.54. Icho chichena checrystalline powder. Inonyungudika nyore nyore muether, acetone, sulfuric acid uye alkaline mhinduro, uye isinganyungudika mumvura. Inowanzo shandiswa senge acid-base chiratidzo, uye pH yayo shanduko yeruvara renji ndeye 9.4-10.6, uye ruvara rwunoshanduka kubva rusina ruvara kuenda rwebhuruu. Kana yashandiswa, inowanzogadzirirwa kuita 0.1% 90% ethanol solution. Iyo inowanzo gadzirirwa pamwe nezvimwe zviratidzo kuti igadzire zvinyoro zvakasanganiswa chiratidzo kuti iite kuti shanduko yeruvara iite diki uye kucherekedza kujeka.

Tsanangudzo

ITEM	STANDARD	RESULT
Identification	Hupfu hwakachena kusvika kuchena	Zvinoenderana
¹H-NMR	Identical spectrum nereferensi	Pass
HPLC kuchena	≥98%	99.6%
Kurasikirwa pakuomeswa	1%max	0.24%

Application

Thymolphthalein inowanzoshandiswa sechiratidzo che-acid-base, ine pH yekuchinja kwemavara kubva pa9.4 kusvika 10.6, uye kuchinja kwemavara kubva kune isina ruvara kusvika kune bhuruu. Kana yakashandiswa, inowanzogadzirirwa se 0.1% 90% ethanol solution, uye inowanzosanganiswa nezvimwe zviratidzo kuti iite chiratidzo chakavhenganiswa kuita kuti ruvara rwayo rwekuchinja ruve rwakatetepa uye rwakajeka kutarisa. Semuenzaniso, chiratidzo chakaitwa nekusanganisa 0.1% ethanol solution yeiyi reagent ine 0.1% ethanol solution ye phenolphthalein haina ruvara muacidic solution, yepepuru mualkaline solution, uye yakasimuka papH 9.9 (color change point), inova nyore chaizvo kuona.