As long as it has been stored where it did not get really hot or really cold and it has been kept sealed it should be good to go. I have been shooting some IMR 4895 that came from pulled down 1950s US military 30-06 ammo. It shoots within what different lot numbers of new IMR 4895 does.
I have a few cans of IMR powders like those and just used up some Blue Dot in one of the older cardboard containers I bought around 1983. They all still work just fine.