SMILES: C1=C(C2=C(N1)N=C(NC2=O)N)C(=N)N
Description: The molecule is a pyrrolopyrimidine that is 7-deazaguanine bearing a carboxamidine substituent at the 7 position. It is a pyrrolopyrimidine and a carboxamidine. It derives from a 7-carboxy-7-deazaguanine. It is a conjugate base of a 7-formamidino-7-deazaguanine(1+).