- a white, crystalline or granular, water-soluble powder, C7H5NaO2, used chiefly as a food preservative and antifungal agent, and in diagnostic tests of liver function.
- a white crystalline soluble compound used as an antibacterial and antifungal agent in preserving food (E211), as an antiseptic, and in making dyes and pharmaceuticals. Formula: (C 6 H 5 COO)Na
