C14H15N3O4
Exact Mass: 289.11
Mol. Wt.: 289.29
m/e: 289.11 (100.0%), 290.11 (15.5%), 291.11 (2.1%), 290.10 (1.1%)
C, 58.13; H, 5.23; N, 14.53; O, 22.12
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