That's commonly known as PG. I use it all the time - for making eliquid for vaping.
Don't brew gear with it.
There's a little mention of it being used as a carrier for IV meds on Wikipedia, but also says it's been linked to serious health problems when done so. That's the only references I've ever seen, although I've never gone looking.
I've never seen anyone mentioning using it to brew injectable AAS. I know of no pharma AAS that uses it either.
I only have experience of making orals myself, so take advice from others about alternative carriers.
Just don't try brewing with PG & being an experiment.
Why are you desperate to use Mig840? You've mentioned it in other threads. Have you injected it before?