O-Cresolphthalein CAS 596-27-0

I-CAS:596-27-0

Ifomula yeemolekyuli:C22H18O4

Ubunzima beMolekyuli:346.38

EINECS:209-881-8

Izithethantonye:3',3''-dimethyl-phenolphthalei; icresolphthalein; iDi-o-Cresolphthalide; o-Cresolphalein; i-o-cresolphtaleine; I-3,3-bis (4-hydroxy-3-methylphenyl) -1 (3h) -isobenzofuranon; 3,3-Bis(4-hydroxy-3-methylphenyl)-1-(3H)-iso-benzofuranone

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Yintoni i-O-Cresolphthalein CAS 596-27-0?

I-O-cresol phthalein ngumgubo wekristale omhlophe ukuya kumthubi okhanyayo. Indawo yokunyibilika 216 ~ 217℃. Inyibilika etywaleni, ether nakwiglacial acetic acid, inyibilika kancinane emanzini, ayinyibiliki kwibenzene, inyibilika kwialkali enyibilikayo. Isetyenziswe njengesalathisi se-acid-base kwi-chemistry yohlalutyo. Inokwakheka kweekhemikhali ezifanayo kunye neempawu zomzimba kunye neekhemikhali kwi-phenolphthalein, kunye nombala wayo wombala we-8.2 (ongenambala) -9.8 (obomvu) (i-Phenolphthalein yombala we-discoloration range yi-8.2-10). Ubume bayo be-asidi yifom ye-lactone engenambala, kwaye isiseko sayo siyifom ye-quinone kwaye ibonakala ibomvu.

Inkcazo

Into	Inkcazo
Indawo yokunyibilika	223-225 °C
Indawo yokubilisa	401.12°C (uqikelelo olurhabaxa)
Ukuxinana	1.1425 (uqikelelo olurhabaxa)
Isalathiso sokuqhafaza	1.4400 (uqikelelo)
pKa	9.40(nge-25℃)