Chemical Name: 2-Methyl-5,10-dihydro-4H-thieno[2,3-b][1,5]benzodiazepin-4-one (as per EP); 2-Methyl-10H-thieno-[2,3-b][1,5]benzodiazepin-4[5H]-one (as per USP)

Smiles: O=C1C(C=C(C)S2)=C2NC3=CC=CC=C3N1