77-09-8 Phenolphthalein

Min.Order / FOB Price:Get Latest Price

1 Metric Ton	Negotiable

1 Metric Ton

Negotiable

Min.Order :1 Metric Ton
Purity: 99%
Payment Terms : L/C,T/T,

Keywords

77-09-8 Phenolphthalein 3,3-bis(p-hydroxyphenyl) phthalide

Quick Details

Appearance:White to pale yellow crystals.
Application:reagent
PackAge:25kg drum
ProductionCapacity:200|Metric Ton|Year
Storage:cool and dry place
Transportation:by sea

Superiority:

CAS No.:

77-09-8

Other Names:

3,3-bis(p-hydroxyphenyl) phthalide

MF:

C20H14O4

EINECS No.:

201-004-7

Place of Origin:

Shanghai, China (Mainland)

Purity:

98%MIN

Classification:

General Reagents

Brand Name:

TNJ

Model Number:

R01

Color:

White to pale yellow

Form:

crystal powder

Details:

Specifications

1) Product Name: Purity 99% Phenolphthalein CAS:77-09-8

2) Other Names: 3,3-Bis(4-hydroxyphenyl)phthalide

3) Appearance:White powder

4) Purity: 99.0%min

5) Introduction:

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.

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

Index Name	Specifications	Results
Appearance	White powder	Conform
Assay	99.0%Min	99.60%
Melting Point	258to263 Deg C	260.5to262.5 Deg C
Heavy Metal	15 ppm Max	10ppm
Arsenic	8ppm Max	8ppm
Residue on ignition	0.1%Max	0.06%
Loss on drying	1.0%Max	0.16%
Fluoran	Pass	pass
Chromatographic Impurity	1.0%Max	0.50%
Organic Volatile Impurity	Pass	Pass

Packaging Description	Sealed export grade drum & double of sealed plastic bag
Storage	In a cool dry place and keep away from strong light and heat
Shelf life	2 years when properly stored