Mercurochrome. This compound was once recognized as a safe antiseptic, but was removed from the list after the FDA discovered that there was some risk of mercury poisoning associated with mercurochrome exposure. It’s now considered to be an untested antiseptic, still used in some developing countries but not considered a safe option.
Hydrogen peroxide and alcohol are probably the most well-known home antiseptics, and both are quite safe and effective if used correctly. ‘Quats’ is short for ‘quaternary ammonium compounds,’ a less well-known but still safe category of antiseptics. Quats are effective against both viruses and bacteria, and can be used as biocides (e.g. anti-algal treatment) as well. Though less common than alcohol and hydrogen peroxide, quats are considered safe.