≥99%(GC)
97%
≥97%(GC)
≥98%
≥98%(HPLC)
≥98%(GC)
≥97%
95%
>98%(GC)
≥97%(GC), 含20 ppm TBC 稳定剂
98%
≥95%(GC)
≥96%
≥95%
≥96%(GC)