Cas号2215-89-6分子式O(C6H4CO2H)2；C14H10O5分子量258.23别名4,4'-DicarboxydiphenylEtherDiphenylEther4,4'-DicarboxylicAcid外观Appearance类白色粉末或结晶红外光谱InfraredSpectrumConforms纯度Purity98.5%-102.5%(NAOH滴定)纯度Purity≥99.0%（HPLC）溶解试验Solubility溶液基本透明（1mol/LNaOH）)