Methyl 4-hydroxybenzoate, 99% - one of the parabens, is a preservative with the chemical formula CH3(C6H4(OH)COO).
M 2105 (OTTO) Methyl 4-hydroxybenzoate, 99% Cas 99-76-3 - used as an anti-fungal agent. It is also used as a preservative in foods, beverages and cosmetics. It acts as an inhibitor of growth of molds and to lesser extent bacteria and as a vehicle for ophthalmic solution.