3-[(Methylsulphonyl)acetyl]pyridine

4-(2-METHYLSULPHONYLACETYL)PYRIDINE

2-(METHYLSULFONYL)-1-PYRIDIN-4-YLETHANONE

2-(Methylsulphonyl)-1-(pyridin-3-yl)ethan-1-one, 3-[2-(Methylsulphonyl)ethanoyl]pyridine