O-Cresolphthalein CAS 596-27-0

CAS:596-27-0

Fọọmu Molecular:C22H18O4

Ìwúwo Molikula:346.38

EINECS:209-881-8

Awọn itumọ ọrọ sisọ:3',3'-dimethyl-phenolphthalei; crsolphthalein; Di-o-Cresolphthalide; o-Cresolphalein; o-cresolphtaleine; 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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Kini O-Cresolphthalein CAS 596-27-0?

O-cresol phthalein jẹ funfun si ina ofeefee okuta lulú. Ojutu yo 216 ~ 217 ℃. Tiotuka ninu oti, ether ati glacial acetic acid, die-die tiotuka ninu omi, insoluble ni benzene, tiotuka ni dilute alkali. Ti a lo bi atọka-ipilẹ acid ni kemistri atupale. O ni eto kemikali ti o jọra ati awọn ohun-ini ti ara ati kemikali si phenolphthalein, ati iwọn awọ-awọ rẹ jẹ 8.2 (laisi awọ) -9.8 (pupa) (Phenolphthalein awọ discoloration ibiti o jẹ 8.2-10). Eto acid rẹ jẹ fọọmu lactone ti ko ni awọ, ati ipilẹ ipilẹ rẹ jẹ fọọmu quinone ati pe o han pupa.

Sipesifikesonu

Nkan	Sipesifikesonu
Ojuami yo	223-225 °C
Oju omi farabale	401.12°C (iṣiro ti o ni inira)
iwuwo	1.1425 (iṣiro ti o ni inira)
Refractive Ìwé	1.4400 (iṣiro)
pKa	9.40 (ni 25℃)