Fragment:

Formula: C14O4

Mass offset: 0.172

Num. used hydrogen atoms: 10

Num. of extra required hydrogen atoms: 0

Atom indices: C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,O17,O18,O20,O21

	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 242.054 Fragment: Formula: C14O4 Mass offset: 0.172 Num. used hydrogen atoms: 10 Num. of extra required hydrogen atoms: 0 Atom indices: C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,O17,O18,O20,O21 Heavy atoms of the fragment are shown in cyan.