CCCCCC(=O)CC(C)=O    mol10924    0_1
CCCC[CH-]C(=O)CC(C)=O    mol10924    -1_1
CCCCCC(=O)[CH-]C(C)=O    mol10924    -1_2
[CH2-]C(=O)CC(=O)CCCCC    mol10924    -1_3