CC(=O)OCC(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(/C=N\Nc1nc2ccccc2c(=O)[nH]1)=N/Nc1nc2ccccc2c(=O)[nH]1
How many heavy atoms like carbon, oxygen, nitrogen, sulfur and other non-hydrogen atoms do the molecule contain?