Pharmaceutical inactive ingredients

Any suggestions as to the most appropriate commodity code for pharmaceutical inactive ingredients ie. excipients, including light mineral oil?

For non active ingredients there does not appear to be a specific heading.
So that would make it a "Mineral product and the thread works quite well from there.
Mineral products-petroleum oils-light oils-no change so other purposes-other-other
So 271012 90000.

That is what I would say is the best fit.
Any other excipient will be worked out on its chemical make-up.