Get SMILES string for compound.
Bond order is guessed with pybel and may lead to incorrect SMILES strings.
smiles_string
str
Acrylamide.get_smiles()
mbuild_polybuild.aa_monomers.acrylamide.Acrylamide.get_boundingbox
mbuild_polybuild.aa_monomers.acrylamide.Acrylamide.is_independent