4-Aminobenzoic acid (PABA) is a chemical compound that serves as an intermediate in the synthesis of folic acid by bacteria, plants, and fungi. This compound possesses antibacterial and plant growth regulating properties, and it is also utilized in sunscreens as an active constituent to protect against UVB irradiation by scavenging reactive oxygen species.
- Intermediate in the synthesis of folic acid
- Exhibits direct antibacterial activity against certain bacteria, including *Listeria monocytogenes*, *Salmonella enteritidis*, and *E. coli*
- Promotes resistance against plant bacterial and viral pathogens
- Functions as a plant growth modulator
- Used in sunscreens to protect against UVB irradiation
- Acts as a scavenger of reactive oxygen species