This model calculates the “exact mass” of a molecule based upon the masses of the most abundant isotopes of its substituent atoms.

As such, this calculation will often be slightly different to the molecular weight calculation which is based upon average isotopic distributions. When installed, this will appear in StarDrop in the “Models” tab alongside the ADME QSAR models and other simple properties as a “Custom model”, allowing it to be calculated easily for any data set.

Installing and using the model

Installation files
How to use the model

Save the model file into the StarDrop model files directory (in a default installation this will be “C:\Program Files\StarDrop\modelfiles”).
When you start StarDrop the model will appear in the list of available models.