	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 58.5 Fragment: Formula: C2O2 Mass offset: 0.464 Num. used hydrogen atoms: 2 Num. of extra required hydrogen atoms: 0 Atom indices: C2,C4,O6,O7 Heavy atoms of the fragment are shown in cyan.