Office for Mac Preview is the open beta version of the upcoming version of Office 2016. One of the issues that crops up everytime there is an update is round-trip editing, i.e. the ability to copy and paste from a chemical drawing package into Word for example and then be able to copy and paste the structure back from Word into the chemical drawing application.

I've not tested it myself but I am assured that ChemDoodle behaves as expected.

If anyone has tested any other chemical drawing packages please let me know.