ABSTRACT
Pyrimidines Cytosine 4-Amino-2-hydroxypyrimidine C4H5N3O 111.10 4.60 12.16 0.73 (25 °C) 5-Methylcytosine 4-Amino-2-hydroxy-5-methylpyrimidine C5H7N3O 125.13 4.6 12.4 0.45 (25 °C) 5-Hydroxymethylcytosine 4-Amino-2-hydroxy-5-hydroxymethylpyrimidine C5H7N3O2 141.13 4.3 13 Uracil 2,4-Dihydroxypyrimidine C4H4N2O2 112.09 0.5 9.5 >13 0.27 (25 °C) Thymine 5-Methyluracil C5H6N2O2 126.11 9.94 >13 0.35 (25 °C) Orotic acid Uracil-6-carboxylic acid C5H4N2O4 156.10 2.4 9.5 >13 0.18 (18 °C)
Purines Adenine 6-Aminopurine C5H5N5 135.14 <1 4.3 9.83 0.104 (25 °C) Guanine 2-Amino-6-hydroxypurine C5H5N5O 151.13 3.3 9.2 12.3 0.0068 (40 °C) 7-Methylguanine 7-Methyl-2-amino-6-hydroxypurine C6H7N5O 165.16 3.5 9.9 Isoguanine 6-Amino-2-hydroxypurine C5H5N5O 151.13 4.5 9.0 0.006 (25 °C) Xanthine 2,6-Dioxopurine C5H4N4O2 152.11 0.8 7.4 11.1 0.05 (20 °C) Hypoxanthine 6-Hydroxypurine C5H4N4O 136.11 2.0 8.9 12.1 0.07 (19 °C) Uric acid 2,6,8-Trihydroxypurine C5H4N4O3 168.11 5.4 11.3 0.002 (20 °C)
