183 Huperzine A
中药学

        [结构式][主要物性]分子式C15H18N2O;分子量242.32。丙酮重结晶,熔点229～230℃,[α]D24.5-150.4°(c=0.498,甲醇)。UVλmaxnm(lgε):231(4.01),313(3.89)。IRνmaxcm-1:3480(m),3340(m),3260(m),3180(m),3010(m),2960(s),2940(s),2910(s),2890(s),2850(s),2820(s),1650(br,s),1615(s),1550(s),145    （共 804 字）     [阅读本文] >>