This pack provides part of the supporting material for:Koch M, Duigou T, Carbonell P, Faulon JL. Molecular structures enumeration and virtual screening in the chemical space with RetroPath2.0. Journal of Cheminformatics, 9:64, 2017. https://doi.org/10.1186/s13321-017-0252-9The pack contains (i) the RetroPath2.0-Mods-isomer-transformation worklfow, (ii) data for the enumeration of alkane isomers using the isomer transformation algorithm (see the main text for details, section 2.1 Isomer enumer...