CCCCCCCc1n[nH]c(=O)[nH]c1=O    mol11421    0_1
CCCCCCCc1n[n-]c(=O)[nH]c1=O    mol11421    -1_1
CCCCCCCc1n[nH]c(=O)[n-]c1=O    mol11421    -1_2