BHO winterisation with ethanol (95%) based "equipment disinfection"?

Hello rollitup! Posting my first thread. I have two questions concerning winterisation:

1.
I have a bottle of 750ml equipment disinfection from the pharmacy containing 740g/kg ethanol and 63g/kg 2-popanol. Could this be a suitable substitute for 190 proof ethanol?

2.
If i use 60% (120-proof) ethanol from the liquor store, would it be the same as if i used 190 proof, but compensating by the amount of proof lost, e.g using approximately 1,5 times more off the 120 proof?(1,6*120=192). If so, would it effect the quality of the product?

I'd recommend posting this in the "concentrates and extracts" section, you'll get a lot more answers from people who actually know what they are talking about when it comes to this.

In my unprofessional opinion though, I would assume that it would be alright to make a tincture with as long as it only contains ethanol and isopropyl alcohol like you said.

120 proof is a bit low to make it efficient at extracting THC, I would go with something that contains at least 75% alcohol if you went with the liquor store option.

But like I said my knowledge is limited when it comes to this so i'd post this in the concentrates and extracts section instead if you want better answers

Oh, "concentrates and extracts" of course .
Thank you!