国产中文字幕乱人伦在线观看,久久永久免费人妻精品,日韩免费视频一一二区,国产片免费福利片永久

Phenolphthalein

Alias:

Phenolphthalein solution; 3,3-bis(p-hydroxyphenyl)phthalide; ,3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranore; 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1(3H)-one; 2-[bis(4-hydroxyphenyl)methyl]benzoic acid; Phenolphthalien

English name:

Phenolphthalein

Alias:

Phenolphthalein solution;
3,3-bis(p-hydroxyphenyl)phthalide;
3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranore;

CAS RN:

77-09-8

EINECS No.:

201-004-7

Molecular formula:

C₂₀H₁₄O₄

Molecular weight:

318.3287

Molecular structure:

Density:

1.323g/cm3

Melting point:

258-263℃

Boiling point:

548.7°C at 760 mmHg

Flash point:

299.7°C

Solubility:

<0.1 g/100 mL

Vapor pressure:

7.12E-13mmHg at 25°C

Properties:

Density 1.299?
Melting point 258-263°C
Solubility <0.1 g/100 mL

Uses:

As acid-base indicator and irritant laxative, in the treatment of constipation