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o-Cresolphthalein

Alias:

o-Cresolphthalein (0.1% in ca. 90% ethanol); ortho-cresolphthalein; 3,3-bis(4-hydroxy-m-tolyl)phthalide; o-Cresollphthalein (0.04% in ca. ethanol); 3,3-bis(4-hydroxy-3-methylphenyl)-2-benzofuran-1(3H)-one

English name:

o-Cresolphthalein

CAS RN:

596-27-0

EINECS No.:

209-881-8

Molecular formula:

C₂₂H₁₈O₄

Molecular weight:

346.3759

Molecular structure:

Density:

1.32g/cm3

Melting point:

223-225℃

Boiling point:

555°C at 760 mmHg

Flash point:

198.8°C

Solubility:

slightly soluble

Vapor pressure:

6.29E-13mmHg at 25°C

Uses:

As acid-base indicator