85%:

外观Appearance                          橙色粉末
红外光谱鉴别Infrared spectrometry       和对照品匹配 
含量Dye-content                         >85 % （HPLC)
λ max.                                  497.0 - 501.0 nm(0.02 mol/L 醋酸铵溶液) 
干燥减量、氯化物及硫酸盐总量            <15 % 
水中不溶物Insoluble matter in H2O       <0.2 % 
砷As                                    < 0.0001% 
铅Pb                                    < 0.001% 
低磺化副染料subsidiary colours:         <1.0 %
重金属(以Pb计)Heavy metals(as Pb)       < 0.002%

99%

外观Appearance                          orange powder
红外光谱鉴别Infrared spectrometry       Conforms to structure
纯度Purity(HPLC)                        ≥99.0 %
    

96%:


外观Appearance                          橙色粉末
红外光谱鉴别Infrared spectrometry       和对照品匹配 
含量Dye-content （HPLC)                 >96 % 
λ max.                                  501.0 nm(0.02 mol/L 醋酸铵溶液)