天青A/531-53-3

熔点：290 °C
质量标准
  

品级Grade                                                染色剂级   
                                                                         (BS) 
生物染色实验                                              合格


70%，用于生物染色实验:

外观Appearance                                       暗绿色至黑色粉末
红外光谱鉴别Infrared spectrometry       和对照匹配
染料含量Dye Content %                          ≥70.0%  
熔点Melting point                                       Appro.290°C (dec.)
UV absorption                                            λmax 633 nm 
λ 620 - 634 nm c = 0.003g/L; Water 
消光系数Extinction Coefficient                ≥34000 
λ 287 - 291 nm 
Extinction Coefficient                               ≥26000 
λ 242 - 246 nm 
Extinction Coefficient                                 ≥11000