Just a curious question

Im adding 1ml 0.6% acetic acid to my 1mg (1000mcg) vial of igf-1 lr3

Im also using a u100 insulin syringe 29gauge 1" pinning 60mcg 2x a day

So my question is
1)how long is igf-1 lr3 stable for in the vial after adding acetic acid in refigerated conditions

2) and how long is it stable in the syringe after backloading with bacteriostatic water