Gas smell in cabin

What is your question?

started having chemical smell when AC was on when it got real hot out, then it got real bad cut air off still smell it, i know my air compressor is going bad but idk, it makes awful groan noise when AC is on and i saw it stop while i had AC full blast with hood up, so idk ? But today the smell got so bad 110 degrees in this Las Vegas weather icut air off n roughed it but this timethe smell stayed