	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 54.8 Fragment: Formula: C2N2 Mass offset: 0.259 Num. used hydrogen atoms: 3 Num. of extra required hydrogen atoms: 1 Atom indices: C2,C4,N7,N8 Heavy atoms of the fragment are shown in cyan.