It also happened to me with a bottle of Sust 500.
Might have had someone new crimping the vials
I went through the whole vial and had ZERO problems
I guess if you are still worried..
Put the vial in a sauce pan
Fill with water about to the 1/2 way up the vial
On a low heat bring the water up just till its about to boil
Let cool
Using a 18ga syringe transfer to a sterile/sealed vial.