Phenolphthalin

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〔61－40〕 HOCOC₆H₄CH(C6H4OH)₂ C₂₀H₁₆O₄ 320．33

[还原酚酞；4′，4″－二羟基三苯基甲烷－2－羧酸；α，α－双(对羟基苯基)邻甲酸；2－[Bis－(4－hydroxy phenyl)methyl]benzoic acid；α，α-Bis(ρ-hydroxy phenyl)－o-toluic acid；Decolorized phenolphthalein；Phenolphthalein reduced；4，4′－Dihydroxy triphenyl methane－2－carboxylic acid]

性状 无色结晶。能溶于醇、醚及碱性溶液，不溶于水。mp 237℃。

注意事项 该品应密封避光保存。