second hand travel crate

so i found a travel crate on the side of the road, thinking it was perfect since i needed one for picking up my puppy next week. i’ve soaked it in napisan (antibacterial detergent) and thought that would be ok, but on second thought, i worry it might be carrying other non-bacteria things that could harm my puppy. any advice on how to make sure it is completely safe for the puppy?