Generic Referenced Kendrick mass-defect calculation tool

Enter the molecular formula (including ion adduct, if any) and charge for the lipid core of interest.
Atom Number
C
H
N
O
P
S
Cl
Na
K
Li
Charge: Ion:
   

Example: C9H18NO6(+) for a triacylglycerol (TAG), corresponding to a triacetylglycerol core (C9H14O6) + NH4+ ion.