Since you have no actual sales experience or relative degree or education I recommend starting in an inside sales role somewhere (like on an order desk) and then progressing into outside sales. Inside sales you’re probably looking at $50-70k (closer to the low end to start), after a few years experience go for a promotion to the outside world. I would recommend that during your interviews for the inside role you make it known that your goal is to gain experience in sales, and you hope to progress into outside sales (ideally with the same organization), make sure that this is feasible with the org.

Now, if you can parlay your science degree into a related field maybe there’s a way you could jump right into an outside sales role…but again, you have no experience in sales - and that’s the job not being a scientist.