CAS:6893-26-1 Molecular formula:C5H9NO4 Molecular weight:147.12926
CAS:70-47-3 Molecular formula:C4H8N2O3 Molecular weight:132.11792
CAS:56-84-8 Molecular formula:C4H7NO4 Molecular weight:133.10268
CAS:1783-96-6 Molecular formula:C4H7NO4 Molecular weight:133.10268
CAS:150-30-1 Molecular formula:C9H11NO2 Molecular weight:165.18914