Phenolphthalein with CAS 77-09-8

CAS:77-09-8
MF:C20H14O4
EINECS:201-004-7

Other Names:Phenolphthalein;alpha.-Di(p-hydroxyphenyl)phthalide;1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-;1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-;2,2-bis(p-hydroxyphenyl)phthalide;

What is Phenolphthalein with CAS 77-09-8?

Phenolphthalein with CAS 77-09-8 mainly acts on the large intestine, which produces semi-liquid excreta in 4 to 8 hours with little or no colic. The claim that yellow phenolphthalein is three times stronger than white remains unproven. As a result of enterohepatic circulation, the effect of a single dose is sustainable for 3 to 4 days. The drug is an active member of many laxatives that can be sold legally without prescription.

사양

항목	사양
적 특성	백색 분말
식별	A:양 B:양
모 솔루션	이 솔루션은 명확하고 강렬한 색상 참조 솔루션 Y7
녹는점	녹에 대해 260℃
관련 물질	최대 0.5%
중금속	10ppm max
산성 또는 알칼리성	을 준수합
염화물	최대 100ppm
황산염	최대 200ppm
건조에 손실	최대 0.5%
화 ash	0.1%max
Assay	98.0-101.0%(C20H14O4)

응용 프로그램

Main uses of phenolphthalein:
1. Pharmaceutical raw materials in the pharmaceutical industry: suitable for habitual and stubborn constipation, available in tablets, suppositories and other dosage forms.
2. Used in organic synthesis: mainly used for synthetic plastics, especially for the synthesis of naphthyridine polyaryl ether ketone polyaryl ether ketone polymers. This type of polymer has excellent heat resistance, water resistance, and chemical resistance. Due to its corrosion resistance, heat aging resistance and good processing and formability, fibers, coatings and composite materials made from it are soon widely used in electronic appliances, mechanical equipment, transportation, aerospace, atomic energy engineering and military fields.
3. Used as acid-base indicator, indicator for titration of non-aqueous solutions, and reagent for chromatographic analysis.

Phenolphthalein-application