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a(chn)ƷB ̪ ӢPhenolphthalein W(xu) Ʒ33-p4-u-13H-߻ͪ 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone) ^ɫ΢SɫĽY(ji)ĩo,oζ ʽ:C20H14O4 CAS̖77-09-8 c260桫263 ˮԣҴܽ⣬ˮЎ׺ܡ ãAָʾҲɫVԇĿǰҪt(y)ˎaʳƷ ӄͺϳɲϵȷ档 b25/Ͱ
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