Chebulic Acid

	Chebulic Acid Chebulic acid is a phenolic compound isolated from the ripe fruits of ''Terminalia chebula''. This compound possesses an isomer, neochebulic acid. Chebulic acid is a component of transformed ellagitannins such as chebulagic acid or chebulinic acid. References Ellagitannins Lactones {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Phenolic Compound In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl Functional group, groups (—Oxygen, OHydrogen, H) Chemical bond, bonded directly to an aromatic hydrocarbon group. The simplest is phenol, . Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule. Phenols are both synthesized industrially and produced by plants and microorganisms. Properties Acidity Phenols are more acidic than typical alcohols. The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12). Deprotonation of a phenol forms a corresponding negative phenolate ion or phenoxide ion, and the corresponding Salt (chemistry), salts are called phenolates or phenoxides (aryloxides according to the IUPAC Gold Book). Condensation with aldehydes and ketones Phenols are susceptible ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Terminalia Chebula ''Terminalia chebula'', commonly known as black- or chebulic myrobalan, is a species of '' Terminalia'', native to South Asia from India and Nepal east to southwest China (Yunnan), and south to Sri Lanka, Malaysia, and Vietnam.Flora of China''Terminalia chebula''/ref> In India, it is known as "Harad" in Hindi and Urdu, "Kadukkai" in Tamil, "Hirada" in Marathi, "Hilikha" in Assamese and "Horitoky" in Bengali. Taxonomy Swedish naturalist Anders Jahan Retzius described the species. Many varieties are known, such as: ''T. c.'' var. ''chebula'' – leaves and shoots hairless, or only hairy when very young ''T. c.'' var. ''tomentella'' – leaves and shoots silvery to orange hairy Description ''Terminalia chebula'' is a medium to large deciduous tree growing to tall, with a trunk up to in diameter. The leaves are alternate to subopposite in arrangement, oval, long and broad with a petiole. They have an acute tip, cordate at the base, margins entire, glabrous above with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Isomer In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers. Isomers do not necessarily share similar chemical or physical properties. Two main forms of isomerism are structural or constitutional isomerism, in which '' bonds'' between the atoms differ; and stereoisomerism or spatial isomerism, in which the bonds are the same but the ''relative positions'' of the atoms differ. Isomeric relationships form a hierarchy. Two chemicals might be the same constitutional isomer, but upon deeper analysis be stereoisomers of each other. Two molecules that are the same stereoisomer as each other might be in different conformational forms or be different isotopologues. The depth of analysis depends on the field of study or the chemical and physical properties of interest. The English word "isomer" () is a bac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Ellagitannin The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative linkage of galloyl groups in 1,2,3,4,6-pentagalloyl glucose. Ellagitannins differ from gallotannins, in that their galloyl groups are linked through C-C bonds, whereas the galloyl groups in gallotannins are linked by depside bonds. Ellagitannins contain various numbers of hexahydroxydiphenoyl units, as well as galloyl units and/or sanguisorboyl units bounded to sugar moiety. In order to determine the quantity of every individual unit, the hydrolysis of the extracts with trifluoroacetic acid in methanol/water system is performed. Hexahydroxydiphenic acid, created after hydrolysis, spontaneously lactonized to ellagic acid, and sanguisorbic acid to sanguisorbic acid dilactone, while gallic acid remains intact. Ellagitannins generally form macrocycles, whereas gallotannins do not. Examples * Castalagin * Castalin * Casuarictin * Grandinin * Oeno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Chebulagic Acid Chebulagic acid is a benzopyran tannin and an antioxidant that has many potential uses in medicine. It has been found to be immunosuppressive, hepatoprotective, and a potent alpha-glucosidase inhibitor, a human gut enzyme useful in diabetic studies. It has been shown to be active against ''Staphylococcus aureus'' and ''Candida albicans''. It is found in the plants ''Terminalia chebula'', '' T. citrina'' and '' T. catappa''. It is formed from geraniin through a glutathione Glutathione (GSH, ) is an antioxidant in plants, animals, fungi, and some bacteria and archaea. Glutathione is capable of preventing damage to important cellular components caused by sources such as reactive oxygen species, free radicals, pe ...-mediated conversion.Glutathione-mediated conversion of the ellagitannin geraniin into chebulagic acid. Tanaka T, Kouno I and Nonaka G.I, Chemical and pharmaceutical bulletin, 1996, volume 44, no 1, pages 34-40, References Phenol antioxidants Ellagit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Chebulinic Acid Chebulinic acid is an ellagitannin found in the seeds of '' Euphoria longana'', in the fruits of ''Terminalia chebula ''Terminalia chebula'', commonly known as black- or chebulic myrobalan, is a species of '' Terminalia'', native to South Asia from India and Nepal east to southwest China (Yunnan), and south to Sri Lanka, Malaysia, and Vietnam.Flora of China''Ter ...'' or in the leaves of '' T. macroptera''. References Ellagitannins Benzoate esters Pyrogallols {{Aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Ellagitannins The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative linkage of galloyl groups in 1,2,3,4,6-pentagalloyl glucose. Ellagitannins differ from gallotannins, in that their galloyl groups are linked through C-C bonds, whereas the galloyl groups in gallotannins are linked by depside bonds. Ellagitannins contain various numbers of hexahydroxydiphenoyl units, as well as galloyl units and/or sanguisorboyl units bounded to sugar moiety. In order to determine the quantity of every individual unit, the hydrolysis of the extracts with trifluoroacetic acid in methanol/water system is performed. Hexahydroxydiphenic acid, created after hydrolysis, spontaneously lactonized to ellagic acid, and sanguisorbic acid to sanguisorbic acid dilactone, while gallic acid remains intact. Ellagitannins generally form macrocycles, whereas gallotannins do not. Examples * Castalagin * Castalin * Casuarictin * Grandinin * Oenot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]