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Phenolphthalein

CAS NO.:77-09-8

Description

Phenolphthalein
CAS NO. 77-09-8
Alias :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
Purity :98.0%-101.0%
Product Standard :Chinese Pharmacopoeia 2020 edition second; BP, USP 

 

General Specification:
【CAS No.】77-09-8
【molecular formula】C20H14O4
【molecular weight】318.323
【EINECS No.】201-004-7
【Package】25kg/drum
【Storage 】Store in a cool, dry, ventilated place with sealed drum 

 

Technical Specification:

 

Item

Standard

Characteristics

A white to yellowish crystal or powder; odourless

Solubility

Soluble in ethanol, slightly soluble in ether, almost insoluble in water

Melting Point

Should be 260-263℃

Identification

 

 

(1)should be positive reaction

(2)should be maximum absorption at 275nm and minimum absorption at 259nm.

(3)Should be consistent with the IR control map

he color of the ethanol solution

The solution should be colorless or almost colorless

Chloride

It should comply with the provisions of the Chinese Pharmacopoeia 2020 edition

sulphate

It should comply with the provisions of the Chinese Pharmacopoeia 2020 edition

foreign matter fluorane

It should comply with the provisions of the Chinese Pharmacopoeia 2020 edition

sensitivity

It should comply with the provisions of the Chinese Pharmacopoeia 2020 edition

Loss on drying

≤1.0%

Residue on ignition

≤0.1%

Heavy Metal

No more than 10 of per million

Content

 Should be 98.0%-101.0%

 

Product Usage:
①Pharmaceutical raw materials: pharmaceutical laxative, can stimulate the intestinal wall, cause intestinal peristalsis to promote defecation;
②Used in organic synthesis: mainly used in the synthesis of plastics, especially the synthesis of diazanazone poly aryl ether ketone poly aryl ether ketone polymerization;
③For alkali indicator: non-aqueous titration indicator, color layer analysis reagent.

 

Package & Storage: 
25kg/drum
【Storage 】Store in a cool, dry, ventilated place with sealed drum 

 

Key Word:

Phenolphthalein

CAS 77-09-8


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辽ICP备2021002629号  web:300.cn jinzhou.300.cn SEO