	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 131.0 Fragment: Formula: C5O4 Mass offset: 0.106 Num. used hydrogen atoms: 7 Num. of extra required hydrogen atoms: 1 Atom indices: C1,C2,C3,C4,C5,O6,O7,O8,O9 Heavy atoms of the fragment are shown in cyan.