has high-technique enterprises with 10 years history, dedicate to separation, purification of the natural active ingredients; and pharmaceutical intermediates’ R&D, production and sales. We also produce international frontier dietary supplements such as granulated powder, solid drinks, tea sachets, and tablets etc.
Product Name Phenolphthalein
Molecular Formula C20H16O4 Molecular Weight 320.3386 CAS Registry Number 77-09-8 EINECS 201-004-7 Density 1.323g/cm3 Melting point 258-263°C Boiling point 548.7°C at 760 mmHg Refractive index 1.672 Flash point 299.7°C Water solubility <0.1 g/100 mL Vapour Pressur 7.12E-13mmHg at 25°C
258to263 Deg C
260.5to262.5 Deg C
15 ppm Max
Residue on ignition
Loss on drying
Organic Volatile Impurity
Keolie laxative CAS 77-09-8 Phenolphthalein
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 chromosomalaberrations 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)