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CAS 77-09-8l Phenolphthalein Indicator Powder API Colorimetric PH

Basic Information
Place of Origin: China
Brand Name: HNB
Certification: ISO
Model Number: phenolphthalein Powder
Minimum Order Quantity: 1KG
Price: Negotiable
Packaging Details: Aluminum foil bag
Delivery Time: Usually7-10days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 5000kg/Month
Detail Information
CAS: 77-09-8 Mf: C20H14O4
MW: 318.32 Specification: ≥98%
Appearance: White Crystalline Powder
High Light:

Phenolphthalein Indicator Powder Colorimetric PH

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Phenolphthalein Indicator Powder API

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CAS 77-09-8l Colorimetric PH Indicator


Product Description

CAS 77-09-8 API Raw Material phenolphthalein Powder

Phenolphthalein Structure

 

Melting point 261-263 °C (lit.)
Boiling point 417.49°C (rough estimate)
density 1.27 g/cm3 at 32 °C
refractive index 1.5400 (estimate)
Fp 24 °C
storage temp. room temp
storage temp. no restrictions.
storage temp. room temp
form Solid

 

The Introductction

 

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 μM 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.

 

The Application & Function

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 μM 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.

 

The COA

 

Items

Specifications

Result

Description

White to off white powder

Conforms

Identification

Similar to the standard

Conforms

Loss On Drying

0.5%

0.3%

Melting point

70-74ºC

71ºC

Heavy metal

≤10ppm

6.6ppm

Residue on ignition

≤0.1%

0.038%

Assay

≥99.0%

99.70%

Contact Details
Gary Liu

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