iMass calculates the molar mass (also called molar weight) of any molecule or compound given its chemical formula. It also displays its elemental composition (% carbon, % oxygen, etc.) as a pie chart.
It also displays the isotopic pattern and calculates the isotopic distribution, as well as monoisotopic mass and most probable mass.
Update to IUPAC 2009 natural abundances
Fix display of isotope in formula (using superscript)
Add high-resolution icon
iMass (com.fxcoudert.imass) is a Mac software application that has been discovered and submitted by users of Software.com.
Operating System: Mac
Default Install Path: /Applications/iMass.app
Minimum OS version: 10.6
Copyright: Copyright (c) 2011, 2012 Mobile Science Apps.