≥97%(HPLC)
≥97%, stab. with hydroquinone
≥98%(GC)
97%
97.5%
95%
≥97%(GC)
≥97.0%(GC)
≥98%(T)
98%
≥98%
≥98%(HPLC)
≥95%(T)
>98%
>98%(HPLC)