I-Thymolphthalein CAS 125-20-2

I-CAS:125-20-2

Ifomula yemolekyuli:C28H30O4

Ubunzima beemolekyuli:430.54

Inombolo ye-EINECS:204-729-7

Isithethantonye: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,uhlalutyo lwe-ACS;I-Thymolphthalein,isalathisi,esicocekileyo; I-THYMOLPHTHALEINREANT(ACS); I-THYMOLPHTHALEINSOLUTION

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Yintoni iThymolphthalein CAS 125-20-2?

Igama lesayensi le-Thymolphthalein yi-"3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", eyi-reagent yendalo. Ifomyula yekhemikhali yi-C28H30O4, kwaye ubunzima be-molecular yi-430.54. Yi-powder emhlophe ekristale. Inyibilika lula kwi-ether, i-acetone, i-sulfuric acid kunye ne-alkaline solutions, kwaye ayinyibiliki emanzini. Ihlala isetyenziswa njengesalathisi se-acid-base, kwaye uluhlu lwayo lotshintsho lombala lwe-pH yi-9.4-10.6, kwaye umbala uyatshintsha ukusuka kokungenambala ukuya koluhlaza okwesibhakabhaka. Xa isetyenziswa, idla ngokulungiswa ibe yisisombululo se-ethanol esingu-0.1% 90%. Ikwalungiswa nezinye izalathisi ukwenza isalathisi esidibeneyo esithambileyo ukwenza uluhlu lwayo lotshintsho lombala lube mxinwa kwaye ukubonwa kucace ngakumbi.

Inkcazo

INTO	UMGANGATHO	IZIPHUMO
Ukuchongwa	Umgubo omhlophe ukuya komhlophe ongekho mhlophe	Ithobela imithetho
¹I-H-NMR	I-spectrum efanayo enokubhekisela kuyo	Ipasi
Ubunyulu be-HPLC	≥98%	99.6%
Ilahleko yokomisa	1% ubuninzi	0.24%

Isicelo

I-Thymolphthalein idla ngokusetyenziswa njengesalathisi se-asidi, enoluhlu lotshintsho lombala lwe-pH oluyi-9.4 ukuya kwi-10.6, kunye notshintsho lombala ukusuka kokungenambala ukuya koluhlaza okwesibhakabhaka. Xa isetyenziswa, idla ngokulungiswa njengesisombululo se-ethanol esingu-0.1% 90%, kwaye idla ngokuxutywa nezinye izibonakaliso ukwenza isalathisi esixutyiweyo ukwenza uluhlu lwayo lotshintsho lombala lube mxinwa kwaye lucace ngakumbi ukuba lubonwe. Umzekelo, isalathisi esenziwe ngokuxuba isisombululo se-ethanol esingu-0.1% sale reagent kunye nesisombululo se-ethanol esingu-0.1% se-phenolphthalein asinambala kwisisombululo se-asidi, simfusa kwisisombululo se-alkaline, kwaye sinyuka kwi-pH 9.9 (indawo yokutshintsha kombala), okulula kakhulu ukuyibona.