phthalic acid structure

Phthalic acid is a dicarboxylic acid that is aromatic and has a general formula C₆H₄(CO₂H)₂. A structure analysis of sodium acid phthalate hemihydrate was undertaken as part of an investigation of a series of salts of phthalic acid.1 The aim of the investigation was an attempt to correlate the structural features and anomalous properties observed in these compounds by Mattson and Ehlert.2 A As China is one of the largest consumers of phthalic acid esters, some human activities may lead to the accumulation of phthalic acid esters in soil and result in contamination. This compound reacts violently with nitric acid. Phthalic acid has a chemical formula C 6 H 4 (CO 2 H) 2 and comprises a six-carbon benzene ring with two carboxylic acid … U.S. Pat. PHTHALIC ACID is a carboxylic acid. o-Phthalic acid molecules act as bridge between two Cu(II), one carboxylate binds to one Cu(II) as bidentate while the other carboxylate binds to another Cu(II) as monodentate. Singh N(1), Dalal V(1), Kumar P(2). hydrochloric acid. CONCLUSION: A series of novel phthalic acid diamides containing a 3,3-dichloro-2-propenyloxy group at the 4-position of the aniline ring were designed and synthesised. Production. This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. The IUPAC name given to phthalic acid is Benzene-1,2-dicarboxylic acid. PAEs are esters formed by phthalic acid and alcohols with different carbon chain structures (CCS). X-ray crystal structure shows structure with monoclinic P2 1/c space group. However, which mechanism dominates the adsorption process is tightly related to the physical and chemical structure of biochar, and the structural properties of adsorbates. H 2 SO 4 instead of anhydrous zinc chloride and conc. Structure based mimicking of Phthalic acid esters (PAEs) and inhibition of hACMSD, an important enzyme of the tryptophan kynurenine metabolism pathway. It is incompatible with sodium nitrite. This structure, determined at 2.55 Å resolution, shows an elaborate hydrogen bonding network that helps in recognition of … Phthalates have been used in food contact materials and are generally allowed for this use. Molecular Formula C 8 H 6 O 4, molecular weight 166.13.A colorless crystal. Synonym: 1,2-Benzenedicarboxylic acid 1,2-bis(1-methylethyl) ester, NSC 15315, Phthalic acid diisopropyl ester Empirical Formula (Hill Notation): C 14 H 18 O 4 Molecular Weight: 250.29 Structure, properties, spectra, suppliers and links for: 4-Methylphthalic acid, 4316-23-8. Phthalic acid, butyl ester, ester with butyl glycolate. The chemical formula of phthalic acid was found to be C₈H₆O₄. Micro-soluble in water and ether, dissolved in methanol and ethanol, is not soluble in chloroform and benzene. o-phthalic acid. Structure-activity relationships with the parent structure provided information that could direct further investigation on structure modification. The full text of this article hosted at iucr.org is unavailable due to technical difficulties. Guidechem provides Phthalic acid chemical database query, including CAS registy number 88-99-3, Phthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. Oxalic acid is an odorless white solid. A recent food safety concern has arisen from the unapproved use of certain phthalates in a broad range of food/nutraceutical ingredients from Taiwan [53]. (NTP, 1992). The phthalic acid product is separated from toluic acid which is added to fresh xylene and catalyst and charged to the oxidation step. Phthalic acid esters have been used as plasticizers in numerous products and classified as endocrine-disrupting compounds. Add 6 drops of 4N H 2 SO 4 and heat in a preheated oil bath to a temperature between 180° and 200°C for half an hour avoiding overheating. Acids accelerate the reaction with water. Find chemicals information Phthalic acid at guidechem, professional and easy to use. phthalic acid (CHEBI:29069) has role human xenobiotic metabolite (CHEBI:76967) phthalic acid (CHEBI:29069) is a benzenedicarboxylic acid (CHEBI:26094) phthalic acid (CHEBI:29069) is conjugate acid of phthalate (CHEBI:26092) phthalic acid (CHEBI:29069) is conjugate acid … Author information: (1)Department of Biotechnology, Indian Institute of Technology Roorkee, 247667, India. The temperature of 206 ° C (decomposition), density (20 / 4 ° C) 1.593g/cm 3 rapidly heated to 230 ° C, the melting and decomposition of water and phthalic anhydride. Phthalic acid is an aromatic dicarboxylic acid, with formula C 6 H 4 (CO 2 H) 2.It is an isomer of isophthalic acid and terephthalic acid.Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. The structures of the isomers of phthalic acid are given here: Phthalic acid - Wikipedia It has two COOH groups in it,making it a dibasic acid. Structure-activity relationships with the parent structure provided information that could direct further investigation on structure modificatio … The RCSB PDB also provides a variety of tools and resources. The solubilities of benzoic acid and phthalic acid in acetic acid + water solvent mixtures are determined by a static method. I am not sure what you want. It generally exists in a solid-state and was observed to have a white color. Although not usually referred to as such, it is an amino acid. Search results for phthalic acid at Sigma-Aldrich. … Here, we report the crystal structure of human QPRT bound to its inhibitor phthalic acid (PHT) and kinetic analysis of PHT inhibition of human QPRT. Take 0.2 g of phthalic anhydride, 0.3 g of resorcinol in dry conical flask. Phthalic acid is an organic compound derived from benzene and used in the manufacture of dyes, perfumes, pharmaceuticals, and synthetic fibers. Abstract We have performed a model study to explore the influence of surface structure on the anchoring of organic molecules on oxide materials. This chemical is sensitive to exposure to extreme heat. A series of novel phthalic acid diamides containing a 3,3-dichloro-2-propenyloxy group at the 4-position of the aniline ring were designed and synthesised. These molecules are visualized, downloaded, and analyzed by users who range from students to specialized scientists. Users can perform simple and advanced searches based on annotations relating to sequence, structure and function. As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to agreed upon standards. Cool the reaction mixture for 5 min. It is also incompatible with oxidizers. Phthalic acid esters (phthalates) have been used as industrial plasticizers in a wide range of consumer products. Solid anthranilic acid consists of both the amino-carboxylic acid and the zwitterionic ammonium carboxylate forms. o-Phthalic acid molecules act as bridge between two Cu(II), one carboxylate binds to … Compare Products: Select up to 4 products. Abstract. Structure. The experimental temperature ranges from (298.3 to 367.9) K, and the mass fraction of acetic acid in the solvent mixtures ranges from 0.8 to 1.0. Coordination polymer of Cu(II) bridged by o-phthalic acid alone is not known.The reaction of CuCl 2.2H 2 O with (2-butoxycarbonyl)benzoic acid yielded three dimensional coordination polymer bridged by o-phthalic acid.X-ray crystal structure shows structure with monoclinic P2 1 /c space group. All inter- and intramolecular interactions in the crystals of phthalic acid have been quantified from the topology of the electron density distribution obtained from low temperature (20 K) X-ray diffraction data and from theoretical calculations. Many routes to anthranilic acid have been described. Taking conc. *Please select more than one item to compare Industrially it is produced from phthalic anhydride, beginning with amination: No. Chronic toxicity and carcinogenicity studies of several phthalic acid esters (PAEs) and compounds containing a 2-ethylhexyl moiety were conducted in Fischer 344 rats and B6C3F1 (hybrid) mice. 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