@property<EOL><INDENT>def PubChems(self):<DEDENT>
return [i.PubChem for i in self.Chemicals]<EOL>
r'''PubChem Component ID numbers for all chemicals in the mixture.

        Examples
        --------
        >>> Mixture(['benzene', 'toluene'], ws=[0.5, 0.5]).PubChems
        [241, 1140]