98％:
外观Appearance                          赭色至棕色粉末
水份water                                      ≤0.5%
Weight loss                                   ＜0.5% at 220°C
熔点Melting point                         277-280°C
Abs Max(nm)                                436nm(in THF)
PL(nm)                                          447.471nm(in THF)
红外光谱鉴定Infrared spectrometry       和对照品匹配
熔点Melting point                         276°C-279 °C
纯度Purity                                     ≥98.0% (GC)