Synonyms

Phenolphthalien
Phenolphthalein
Phenolphthalein solution
2,2-bis(p-hydroxyphenyl)phthalide
3,3-bis(p-hydroxyphenyl)phthalide
alpha-di(p-hydroxyphenyl)phthalide
alpha-di-(p-hydroxyphenyl)phthalide
2-[bis(4-hydroxyphenyl)methyl]benzoic acid
.alpha, alpha.-Di(p-hydroxyphenyl)phthalide
,3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranore
3,3-bis(4-hydroxyphenyl)-1(3h)-isobenzofuranon
3,3-bis(4-hydroxyphenyl)-2-benzofuran-1(3H)-one
1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-
1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-
alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)-o-toluicacid

CAS

77-09-8

Molecular Formula

C20H14O4

Molar Mass

318.32

Density

1.27 g/cm3 at 32 °C

Melting Point

261-263 °C (lit.)

Boling Point

417.49°C (rough estimate)

Flash Point

24°C

Physical and Chemical Properties

Density 1.299
melting point 258-263°C
water solubility <0.1g/100 mL

Use

Used as an acid-base indicator stimulant laxative for the treatment of          constipation