CH3-CH3的核磁共振氢谱中有几种氢?
CH3-CH3的核磁共振氢谱中有几种氢?
CH2=CH-CH3的核磁共振氢谱?
CH3CH(CH3)CH2CH(CH3)CH3的名称
CH3CH(CH3)CH2CH(CH3)C(CH3)2CH2CH2CH2CH(CH3)CH(CH3)CH3 请问这个的标
CH3-C(CH3)2-CH3-CH(C2H5)-CH(CH3)-CH3的系统命名
烷烃的系统命名CH3 CH3 | |CH3-CH3-C-C-H| | CH3 C2H5如何命名?
CH3CH(CH3)CH2CH2CH(CH3)CH3一氯代物的所有同分异构体
cH3-CH(C2H5)-CH(CH3)(C2H5)-CH3的名称
(CH3)2CHCH(CH3)(CH2)3CH3的名称是?
CH3CH(CH2CH3)CH(CH3)CH2CH(CH3)CH3的名称
CH3(CH2)5CH3和CH3(CH2)6CH3和CH3(CH2)4CH3各有几种不同环境的氢
(ch3)2ch-ch(ch3)的一氯代物有几种?