148608-52-0 1H-Pyrrolo(2,3-d)pyrimidine-5-carboximidamide, 2-amino-4,7-dihydro-4-oxo-7-beta-D-ribofuranosyl- 2-Amino-4,7-dihydro-4-oxo-7-beta-D-ribofuranosyl-1H-pyrrolo(2,3-d)pyrimidine-5-carboximidamide Archaeosine