Fragment:

Formula: C13O5

Mass offset: 0.275

Num. used hydrogen atoms: 9

Num. of extra required hydrogen atoms: 1

Atom indices: C1,C2,C3,C5,C6,C7,C9,C10,C11,C12,C13,C14,C15,O17,O18,O19,O20,O21

	Computational Annotation of MS Peaks (CAMP)
Home Processed databases Atom-Mass pairs Search: (Search for compound name or MassBank ID)	Queried mass: 244.932 Fragment: Formula: C13O5 Mass offset: 0.275 Num. used hydrogen atoms: 9 Num. of extra required hydrogen atoms: 1 Atom indices: C1,C2,C3,C5,C6,C7,C9,C10,C11,C12,C13,C14,C15,O17,O18,O19,O20,O21 Heavy atoms of the fragment are shown in cyan.