Features

simplify the calculation of the batch composition and reactant amounts
allow interactive explorations by changing the composition, reactants, sample size etc.
get a customizable lab report (pdf and/or TeX)
store all the syntheses in a database for bookkeeping and sharing with others
build, edit, reuse and share a well structured database of chemicals, and components to save time
multiplatform, written in python which makes coding and adding your own features easy
fast, easy, reproducible, collaborative, extendable and free!

Screenshot