. 2014 Dec 15;4:7492. doi: 10.1038/srep07492

Table 1. Accurate mass data for the four new arsenolipids in blue-whiting oil.

Arsenolipid	Molecular formula	[M+H]⁺ Calc.	[M+H]⁺ measured	(Δm/m, ppm)
As-HC440	C₂₅H₄₉AsO	441.3077	441.3075	0.5
As-HC442	C₂₅H₅₁AsO	443.3234	443.3235	<0.3
As-HC444	C₂₅H₅₃AsO	445.3390	445.3385	1.1
As-HC542	C₃₃H₅₅AsO	543.3547	543.3545	0.4