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CAS: 77-09-8
Molecular Formula: C20H14O4
Molecular Weight: 318.32
EINECS: 201-004-7
Storage Period: 1 year
Synonym: 1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-; 1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-; 2,2-bis(p-hydroxyphenyl)phthalide; 3,3-bis(4-Chemicalbookhydroxyphenyl)-1(3h)-isobenzofuranon; alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)-o-toluicacid; alpha-di-(p-hydroxyphenyl)phthalide; alpha-di(p-hydroxyphenyl)phthalide
Phenolphthalein 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.
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รายการ
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Specifications
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ที่มีลักษณะ
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สีขาวแป้ง
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การแสดงตัว
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เป็น:ค่าเป็นบวก
B:ค่าเป็นบวก |
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รูปลักษณ์ของทางออก
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ทางปลอดภัยและไม่ใช่อะไรจริงจังขึ้นมา Coloured มากกว่าอ้างอิงทางออก Y7
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จุดหลอมเหลว
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มันละลายในเรื่อง 260℃
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เกี่ยวข้องกังแปลกปลอม
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0.5%แม็กซ์
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โลหะหนัก
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10ppm แม็กซ์
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Acidity หรือ Alkalinity
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Complies
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Chlorides
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100ppm แม็กซ์
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Sulphates
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200ppm แม็กซ์
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การสูญเสียอยู่ Drying
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0.5%แม็กซ์
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Sulphated แอช
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0.1%แม็กซ์
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Assay
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98.0-101.0%(C20H14O4)
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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.
25kg/drum
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