N4-Acetyl-2'-O-Methyl-cytidine

5'-O-DMT-N2-Isobutyryl-2'-O-methyl-D-guanosine

A[5']P4[5']A AMMONIUM SALT

A[5']P5[5']A AMMONIUM SALT

N⁶-benzoyl-3′-O-(azidomethyl)-2′-deoxyadenosine

N²-isobutyryl-O⁶-diphenylcarbamoyl-3'-O-azidomethyl-2'-deoxyguanosine

5-Acetyl-d3-amino-6-formylamino-3-methyluracil (also see A168213)

6-Amino-5-nitroso-3-methyluracil-d3

5-FORMYLURACIL