To get back to the OP's question...
I have used "Brake Clean" numerous times on Trigger groups ( even while still installed in the lower) , and then just used any grease I had on hand. Myself, I have never had an issue doing that.
NOTE: those times have been field expedient... and NOT with a Trigger Pack.
You will find the AR firearm to be very tolerant of all sorts of abuse... Look up "Filthy 14"... never cleaned in 40K plus rounds... just squirted with lube every once in a while.
Point is, any solvent really shouldn't adversely effect the CMC trigger pack.... just be sure to re apply any removed lubes
If you are concerned, try some paint thinner... it will work and is pretty mild as solvents go.
Wear some safety glasses if you are going to scrub the trigger pack. ( Ya only got two eyes. )
Air dry, then re-lube with a decent penetrating oil... ( to get into the trigger and hammer pin bearing surfaces )
I wouldn't feel good about using Denatured Alcohol... that stuff isn't a strong grease remover.
( Frankly, IMHO it is best for cleaning your windshield wiper blades wiping edge... try it, you'll see , and removing latex paint spill's )
As for a Moly Grease, just about any will work... a dab on a toothpick, will get into tough to reach places...Like the sears
Hope this helps... and remember the AR design is 50+ years old, and at best has been maintained by people far less cautious then most of us.
Thank you. This whole thing got blown wayyy out of hand! This is a brand new build, and i should of used my calipers, instead of using my trigger. Its a drop in, and ive always had standard, which is easy to wipe down. CMC has it packed with moly, instead of what everyone here has said about grease placement.