The term heterocyclic compound is identified in base64 scheme by the sequence aGV0ZXJvY3ljbGljIGNvbXBvdW5k, while the MD5 signature is equal to 684e287d07b96f56241c8bd8c8e79276. The ASCII encoding of heterocyclic compound in hexadecimal notation is 68657465726f6379636c696320636f6d706f756e64.