M=72
C5H12
CH3CH2CH2CH2CH2Cl CH3CH2CH2CHClCH3 CH3CH2CHClCH2CH3
(CH3)2CHCH2CH2Cl (CH3)2CHCHClCH3 (CH3)2CClCH2CH3 CH2ClCH(CH3)CH2CH3
(CH3)3CCH2Cl
M=72
C5H12
CH3CH2CH2CH2CH2Cl CH3CH2CH2CHClCH3 CH3CH2CHClCH2CH3
(CH3)2CHCH2CH2Cl (CH3)2CHCHClCH3 (CH3)2CClCH2CH3 CH2ClCH(CH3)CH2CH3
(CH3)3CCH2Cl