Molecule Builder: Proline

Amino Acid



Shows the elements present in a compound and their relative proportions.

Molecular Mass

Once you know what elements compose the molecule, you can add up their average masses to get the total molecular mass.

Nitrogen Percentage

Total nitrogen mass divided by the total molecular mass.

Alanine molecule (C3H7NO2) builder interactive. Dragging one of the four draggable elements from the periodic table to the empty slots in the molecule diagram. As items are dropped the molecular mass is calculated on the tables. The nitrogen percentage will be calculated once the molecule is complete. Click see complete to skip interactive and show completed molecular mass tables.