What is the half life time in humans after IV administration value for the SMILES Cn1c(=O)c2c(ncn2C)n(C)c1=O:4.900
What is the {half_life_duration__names__noun} value for the {SMILES__description} {SMILES#}:{half_life_duration#}
1,3,7-trimethylpurine-2,6-dione