002 Acetylshikonin
中藥學(xué)

        [異名]乙酰紫草醌[結(jié)構(gòu)式][主要物性]分子式C18H18O6;分子量330.32。紅色針狀結(jié)晶(石油醚),熔點(diǎn)92～94℃。:1741,1615,1575。1HNMR(CCl4)δ:1.60,1.70[6H,每個(gè)為s,=C(CH3)2],2.11(3H,s,—COCH3),2.40,2.56(2H,每個(gè)為m,Ar—ROCH—CH2—),5.08(1H,br,t,1-CH=C),5.88(1H,br,t,Ar—    （共 301 字）     [閱讀本文] >>