The molecule is a 7-deazaguanosine ribonucleoside that has 7-carbamoyl-7-deazaguanine as the nucleobase. It is present in archaeal tRNA and has also been found in bacterial DNA. It is a 7-deazaguanine ribonucleoside and a primary carboxamide. It derives from a 7-carboxy-7-deazaguanine and an archaeosine.
2-amino-7-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-oxo-3H-pyrrolo[2,3-d]pyrimidine-5-carboxamide