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翻译:
1、“Dissolve 10.0 mg of ubidecarenone for system suitability CRS in 10.0 ml of hexane R.”
其中system suitability CRS 是什么意义, hexane 后的R什么意思?
2、(2RS)-7,8-dimethoxy-2,5-dimethyl-2-[(all-E)-4,8,12,16,20,24,28,32,36-nonamethylheptatriaconta- 3,7,11,15,19,23,27,31,35-nonaenyl]-2H-1-benzopyran-6-ol(ubicromenol)
3、Calculate the content of C59H90O4 taking the specific absorbance to be 169.
这些是看国外药典时碰到的,不知道什么意义,请大家帮忙,谢谢!
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