[OS X TeX] Conflict between mtpro2 and mhchem

[Themis Matsoukas]

> On Mar 11, 2017, at 1:44 PM, Michael Sharpe <msharpe at ucsd.edu> wrote:
> 
> The error will go away if you  place the line
> 
> \usepackage{etex}
> 
> before loading mhchem.
> 

Yes, that fixes the problem - Thanks!

Themis