Dihydroxybenzoic Acid

	Dihydroxybenzoic Acid Dihydroxybenzoic acids (DHBA) are a type of phenolic acids. There are six main compounds, having all the same molecular formula C7H6O4. Those are: * 2,3-Dihydroxybenzoic acid (2-Pyrocatechuic acid or hypogallic acid) * 2,4-Dihydroxybenzoic acid (β-Resorcylic acid) * 2,5-Dihydroxybenzoic acid Gentisic acid is a dihydroxybenzoic acid. It is a derivative of benzoic acid and a minor (1%) product of the metabolic break down of aspirin, excreted by the kidneys. It is also found in the African tree ''Alchornea cordifolia'' and in wine. Pr ... (Gentisic acid) * 2,6-Dihydroxybenzoic acid (γ-Resorcylic acid) * 3,4-Dihydroxybenzoic acid (Protocatechuic acid) * 3,5-Dihydroxybenzoic acid (α-Resorcylic acid) Orsellinic acid is also a dihydoxybenzoic acid having an extra methyl group. {{Chemistry index Dihydroxybenzoic acids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	2,4-Dihydroxybenzoic Acid 2,4-Dihydroxybenzoic acid (β-resorcylic acid) is a dihydroxybenzoic acid. As a ''resorcylic acid'', it is one of the three isomeric crystalline acids that are both carboxyl derivatives of resorcinol and dihydroxy derivatives of benzoic acid. Synthesis from resorcinol is via the Kolbe-Schmitt reaction. It is a degradation product of cyanidin glycosides from tart cherries in cell cultures. It is also a metabolite found in human plasma after cranberry juice Cranberry juice is the liquid juice of the cranberry a fruit recognized for its bright red color, tart taste, and versatility for product manufacturing. Major cranberry products include cranberry juice, dried cranberry, cranberry sauce, frozen ... consumption. References Cited sources * Dihydroxybenzoic acids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Phenolic Acid Phenolic acids or phenolcarboxylic acids ? are phenolic compounds and types of aromatic acid compounds. Included in that class are substances containing a phenolic ring and an organic carboxylic acid function (C6-C1 skeleton). Two important naturally occurring types of phenolic acids are hydroxybenzoic acids and hydroxycinnamic acids, which are derived from non-phenolic molecules of benzoic and cinnamic acid, respectively. Occurrences Phenolic acids can be found in many plant species. Their content in dried fruits can be high. Natural phenols in horse grams (''Macrotyloma uniflorum'') are mostly phenolic acids, namely 3,4-dihydroxy benzoic, ''p''-hydroxy benzoic, vanillic, caffeic, ''p''-coumaric, ferulic, syringic, and sinapinic acids. Phenolic acids can be found in several mushroom-forming species of basidiomycetes. It is also a part of the humic substances, which are the major organic constituents of soil humus. Many phenolic acids can be found in human urin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	C7H6O4 The molecular formula C7H6O4 may refer to: * Dihydroxybenzoic acids, a type of phenolic acids 2,3-Dihydroxybenzoic acid (2-pyrocatechuic acid or hypogallic acid) 2,4-Dihydroxybenzoic acid (β-resorcylic acid) 2,5-Dihydroxybenzoic acid (gentisic acid) 2,6-Dihydroxybenzoic acid (γ-resorcylic acid) 3,4-Dihydroxybenzoic acid (protocatechuic acid) 3,5-Dihydroxybenzoic acid (α-resorcylic acid) * Patulin Patulin is an organic compound classified as a polyketide. It is named after the fungus from which it was isolated, '' Penicillium patulum''. It is a white powder soluble in acidic water and in organic solvents. It is a lactone that is heat-stabl ... , a mycotoxin produced by a variety of molds {{Molecular formula disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	2,4-Dihydroxybenzoic Acid 2,4-Dihydroxybenzoic acid (β-resorcylic acid) is a dihydroxybenzoic acid. As a ''resorcylic acid'', it is one of the three isomeric crystalline acids that are both carboxyl derivatives of resorcinol and dihydroxy derivatives of benzoic acid. Synthesis from resorcinol is via the Kolbe-Schmitt reaction. It is a degradation product of cyanidin glycosides from tart cherries in cell cultures. It is also a metabolite found in human plasma after cranberry juice Cranberry juice is the liquid juice of the cranberry a fruit recognized for its bright red color, tart taste, and versatility for product manufacturing. Major cranberry products include cranberry juice, dried cranberry, cranberry sauce, frozen ... consumption. References Cited sources * Dihydroxybenzoic acids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	2,5-Dihydroxybenzoic Acid Gentisic acid is a dihydroxybenzoic acid. It is a derivative of benzoic acid and a minor (1%) product of the metabolic break down of aspirin, excreted by the kidneys. It is also found in the African tree ''Alchornea cordifolia'' and in wine. Production Gentisic acid is produced by carboxylation of hydroquinone.Hudnall, Phillip M. (2005) "Hydroquinone" in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. Wiley-VCH, Weinheim. . :C6H4(OH)2 + CO2 → C6H3(CO2H)(OH)2 This conversion is an example of a Kolbe–Schmitt reaction. Alternatively the compound can be synthesized from salicylic acid via Elbs persulfate oxidation. Reactions In the presence of the enzyme gentisate 1,2-dioxygenase, gentisic acid reacts with oxygen to give maleylpyruvate: :2,5-dihydroxybenzoate + O2 \rightleftharpoons maleylpyruvate Applications As a hydroquinone, gentisic acid is readily oxidised and is used as an antioxidant excipient in some pharmaceutical preparations. In the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	2,6-Dihydroxybenzoic Acid 2,6-Dihydroxybenzoic acid (γ-resorcylic acid) is a dihydroxybenzoic acid Dihydroxybenzoic acids (DHBA) are a type of phenolic acids. There are six main compounds, having all the same molecular formula C7H6O4. Those are: * 2,3-Dihydroxybenzoic acid (2-Pyrocatechuic acid or hypogallic acid) * 2,4-Dihydroxybenzoic acid .... References Dihydroxybenzoic acids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	3,4-Dihydroxybenzoic Acid Protocatechuic acid (PCA) is a dihydroxybenzoic acid, a type of phenolic acid. It is a major metabolite of antioxidant polyphenols found in green tea. It has mixed effects on normal and cancer cells in ''in vitro'' and ''in vivo'' studies. It is produced commercially from vanillin. Biological effects Protocatechuic acid (PCA) is antioxidant and anti-inflammatory. PCA extracted from ''Hibiscus sabdariffa'' protected against chemically induced liver toxicity ''in vivo''. ''In vitro'' testing documented antioxidant and anti-inflammatory activity of PCA, while liver protection ''in vivo'' was measured by chemical markers and histological assessment. PCA has been reported to induce apoptosis of human leukemia cells, as well as malignant HSG1 cells taken from human oral cavities, but PCA was found to have mixed effects on TPA-induced mouse skin tumours. Depending on the amount of PCA and the time before application, PCA could reduce or enhance tumour growth. Similarly, PCA was report ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]