Compounds that only enter the network
-------------------------------------

ID	Compartment	Name
C00027	Cytosol	H2O2
C00044	Cytosol	GTP
C06033	Cytosol	Parapyruvate

Compounds that only exit the network
------------------------------------

ID	Compartment	Name
C00001	Cytosol	H2O
C00007	Cytosol	Oxygen
C00013	Cytosol	Diphosphate
C00022	Cytosol	Pyruvate
C01261	Cytosol	GppppG
