	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 81.0459 Fragment: Formula: C4N2 Mass offset: 0.050 Num. used hydrogen atoms: 5 Num. of extra required hydrogen atoms: 1 Atom indices: C5,C6,C10,C12,N13,N16 Heavy atoms of the fragment are shown in cyan.