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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?
Fenolftaleïne werkt vooral in op de dikke darm, die produceert semi-vloeibare mest in 4 tot 8 uur met weinig of geen koliek. De claim dat de gele fenolftaleïen is drie keer sterker dan de witte blijft onbewezen. Als gevolg van de enterohepatische circulatie, het effect van een enkele dosis is duurzaam 3 tot 4 dagen. De drug is een actief lid van vele laxeermiddelen die verkocht kunnen worden van rechtswege en zonder recept.
Specificatie
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Items
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Specificaties
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Kenmerken
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Wit poeder
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Identificatie
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A: Positive
B: Positive |
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Appearance of Solution
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The Solution Is Clear And Not More Intensely Coloured Than Reference Solution Y7
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Smeltpunt
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It melts at about 260℃
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Related Substances
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0.5% max
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Zware Metalen
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10ppm max
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Acidity or Alkalinity
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Voldoet
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Chloriden
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100ppm max
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Sulfaten
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200ppm max
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Verlies bij Drogen
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0.5% max
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Sulfaatas
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0.1% max
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Assay
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98.0-101.0%(C20H14O4)
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Toepassing
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.
Pakket
25kg/trommel
