I carry a vial of povidone iodine in a small glass vial (no dropper, just a screw cap though I could easily switch this) in my PSK kit. Fits great with a small BIC lighter as well. You could use it as a disinfectant for wounds and for purifying water.

It's easy to get benzalkonium chloride wipes from most pharmacies or clinic supply stores, and the alcohol free hand sanitizers have them as a main ingredient as well usually.

Eric