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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

Country/Region china
City & Province hubei/wuhan
Company Wuhan Hezhong Biochemical Manufacturing Co., Ltd.
Categories Pharmaceutical Intermediates
Update 2016-12-27 15:19:20
Brand Name: HZ
Model Number: C20h14o4
Certification: ISO,GMP
Place of Origin: CHINA
Minimum Order Quantity: 1g
Price: Negotiable
Payment Terms: T/T, Western Union, Money Gram, Bitcoin
Supply Ability: 10000kg/month
Delivery Time: 3-5 work days
Packaging Details: per request
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
Company Info
Wuhan Hezhong Biochemical Manufacturing Co., Ltd.
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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.

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

COA:

ItemsStandardsResults
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
Arsenic≤8ppm<8ppm
Acidity or AlkalinityCompliesComplies
Chlorides≤100ppm<100ppm
Sulphates≤200ppm<200ppm
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

 

Product Tags:

pharma intermediates

  

pharma raw materials

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

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