Parhydroxy acid benzoic acid. ASTEL CRISOTIC ACID. Parahedroxy benzoate, ethyl or propyl benzoate

- Parhydroxy benzoic acid, which is crystalline, is mentioned from its important esters:
1. Parahydroxy benzoate.
2- Ethyl parathyroxyzo benzoate.
3. Parahydroxy benzoate propyl.
These esters are used as preservatives.
- Crisotic acids.
- Acetylchrysotic Acids.