IUPAC: {[(9Z)-8,8-dimethyl-2-oxo-2H,8H,9H,10H-pyrano[2,3-h]chromen-9-ylidene]amino}thiourea

SMILES: CC1(C)Oc2ccc3ccc(=O)oc3c2C\C1=N\NC(N)=S