Fragment:

Formula: C18O2

Mass offset: 0.203

Num. used hydrogen atoms: 17

Num. of extra required hydrogen atoms: 0

Atom indices: C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,O19,O20

	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 265.1228 Fragment: Formula: C18O2 Mass offset: 0.203 Num. used hydrogen atoms: 17 Num. of extra required hydrogen atoms: 0 Atom indices: C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15,C16,C17,C18,O19,O20 Heavy atoms of the fragment are shown in cyan.