Hydroxybenzoic acids are polyphenol phytonutrients. They include:
what is the molecular formulae for 2-hydroxybenzoic acid
4 hydroxybenzoic acid is para directing group whereas 2 is ortho directing group. thus at para, the two groups i.e. alcohol and carboxyl are far apart and thus dont show steric hinderance. therefore para directing group is a stable and as a result less acidic.
4-Hydroxybenzoic acid, or p-hydroxybenzoic acid, HOC6H4CO2H ,is primarily known as the basis for the preparation of its esters, known as parabens, which are used as preservatives in cosmetics, being a popular antioxidant because of its low toxicity (LD50 = 2200 mg/kg for mice (oral)).Its isomere 2-Hydroxybenzoic acid is called: salicylic acid, a precursor to aspirin(R).
The structural formula of the complex between Fe(III) and 2-hydroxybenzoic acid can be represented as Fe(C7H5O3)3. In this complex, the iron ion (Fe) is coordinated to three molecules of 2-hydroxybenzoic acid (C7H5O3) through coordination bonds.
No, it is the methyl ester of p-hydroxybenzoic acid.
Ur grandmother
o-Hydroxybenzoic acid is stronger than m-hydroxybenzoic acid because the hydroxyl group in o-hydroxybenzoic acid is in closer proximity to the carboxylic acid group, allowing for stronger intramolecular hydrogen bonding. This results in greater stabilization of the molecule and higher acidity.
2-hydroxybenzoic acid. Structurally it is a benzene ring. On carbon no ;1; of the ring there is a carboxylic acid functional group (Phenyl - COOH). On Carbon No. 2., The adjacent carbon, there is an hydroxy (-OH) functional group.
*Salicylic acid: C7H6O3 or HOC6H4COOH(they both are same)(2-Hydroxybenzoic acid)
Methylparaben is typically synthesized by esterification of p-hydroxybenzoic acid with methanol, usually in the presence of an acid catalyst such as sulfuric acid. This process forms the ester linkage between the p-hydroxybenzoic acid and the methanol, resulting in the formation of methylparaben.
Fatty acids , amino acids , acids in Kreb's cycle .
Such acids are considered weak acids, such as organic acids.