溶于乙醇、乙醚、冰醋酸,溶于稀堿呈紫色,微溶于水,難溶于苯。酸堿指示劑,變色范圍pH8.2(無色)-9.8(紅色).O -甲酚酞作為鈣化介質(zhì)中的組分用于鈣化試驗(yàn)。
Soluble in ethanol, ether and glacial acetic acid, purple in dilute alkali, slightly soluble in water and hardly soluble in benzene.O-Cresolphthalein has been used as a component in calcifying media for calcification assay.
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