MDF ( monomer description files) are a standard file format used in many large polymer simulation packages.
Example line:
R1_1:O1 O oh G1 0 0 0.0000 1 0 8 1.0000 0.0000 C1
In CRAPS only the first column ( atom type) and the last columns ( connections to other atoms) are used.
* BPA-PC mdf-file
* TMC-PC mdf-file