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外观Appearance 无色液体红外光谱鉴别Infrared spectrometry 和对照品匹配 纯度Purity (total of isomers) ≥80.0% (GC) 比重Specific gravity (20/20°C) 0.9130 - 0.9160 折光率Refractive index n20/D 1.5600 - 1.5630 稳定剂inhibitor 1000 ppm p-tert-butylcatechol