Regarding Dextromethorphan (DXM), CAS:125-71-3, is it used as a precursor raw material for ketamine?

[inno]

A supplier from China told me that DXM (CAS:125-71-3) can be used as a precursor raw material for making ketamine. Is it true? If anyone knows how to operate it, can you tell me, thank you very much.

 

[mycelium]

I have never heard of it, I looked it up and couldn't find anything.
I think I would have heard about that