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Pharmaceutical Intermediates Sell 99.5% API Phenolphthalein CAS: 77-09-8

Categories Pharmaceutical Intermediates
Brand Name: HZ
Model Number: C20h14o4
Certification: ISO,GMP
Place of Origin: China
MOQ: 1g
Price: Negotiable
Payment Terms: T/T, Western Union, Money Gram, Bitcoin
Supply Ability: 10000kg/month
Delivery Time: 3-5 work days
Packaging Details: as you required
CAS: 77-09-8
Einecs: 201-004-7
Molecular Formula: C20h14o4
Molecular Weight: 318.3287
Purity: 99%
Melting Point: 258-263 C
Flash Point:: 299.7 C
Appearance: White Crystalline Powder
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    Pharmaceutical Intermediates Sell 99.5% API Phenolphthalein CAS: 77-09-8

    Pharmaceutical Intermediates Sell 99.5% API Phenolphthalein CAS: 77-09-8

    Phenolphthalein is a chemical that is commonly used as a colorimetric pH indicator. The compound has been observed to turn orange at pH <0, clear between pH 0-8.2, fuchsia between pH 8.2-12, and clear again at a pH above 12. It has been postulated that the mutagenic effects of Phenolphthalein at high doses can be attributed the enhancement intracellular free oxygen radicals. The compound has also been observed to induce mitotic abnormalities and micronuclei with kinetochores in vitro. In Syrian hamster embryos treated with 10-40 μ M of Phenolpthalein a significant number of chromosomal aberrations occurred at the hprt locus. On human breast cancer cells Phenolphthalein has been observed to have weak estrogenic effects.

    Acid-base indicator, chromatography reagents, organic synthesis, pharmaceutical industry (such as the manufacture of laxatives)


    CharacteristicsA white or almost white powder ,practically insoluble in water ,soluble in alcoholConform
    Melting temperature≥260ºC260.5ºC~262.6ºC
    IdentificationA Positive
    B Positive
    A Positive
    B Positive
    Appearance of solutionThe solution is clear and not more intensely coloured than reference solution Y7Complies
    Related substancesLess than 0.5%< 0.5%
    Heavy metals≤10ppm<10ppm
    Acidity or AlkalinityCompliesComplies
    Organic volatile impuritiespasspass
    Chromatographic impurities≤1.0%<1.0%
    FluoranTo pass testComplies
    Loss on drying≤0.50%0.10%
    Sulphated ash (Residue on ignition)≤0.10%0.02%
    Assay98.0%~101.0% (C20H14O4)99.8%
    RemarkStorage condition: Well closed container, store protected from light
    ConclusionIt comply with BP2009 and USP23

    Quality Pharmaceutical Intermediates Sell  99.5% API Phenolphthalein CAS: 77-09-8 for sale
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