CAS: 55804-66-5 Molecular Formula: C18H19NO4 Molecular Weight (g/mol): 313.353 MDL Number: MFCD00051334 InChI Key: VMJKUPWQKZFFCX-UHFFFAOYSA-N Synonym: Coumarin 504, Ethyl 2,3,6,7-Tetrahydro-11-oxo-1H,5H,11H-[1]benzopyrano[6,7,8-ij]quinolizine-10-carboxylate PubChem CID: 72653 ChEBI: CHEBI:51940 SMILES: CCOC(=O)C1=CC2=CC3=C4C(=C2OC1=O)CCCN4CCC3