Accordingly, the name ‘benzofuran’ consists of the prefix ‘benzo’ followed by the retained name ‘furan’. Nomenclature of Anhydrides. Exposure to phthalic anhydride may occur during its use as a chemical intermediate in the plastics industry. C6H4(CH3)2 + 7.5 O2 → C4H2O3 +4 H2O + 4 CO2 The rea… What factors promote honey's crystallisation? CAS-number: 85-44-9. Why would the ages on a 1877 Marriage Certificate be so wrong? Download the identifier in a file. Starting from o-xylene, the oxidation follows the following stoichiometry: 1. What species is Adira represented as by the holo in S3E13? Phthalic anhydride is the organic compound with the formula :-C6H4(CO)2O. Help. ... 1307. Thus, the preferred IUPAC name (PIN) of phthalic anhydride is ‘2-benzofuran-1,3-dione’. Dyes derived from condensation of phthalic anhydride with m-dialkylaminophenols. Find where to buy products from suppliers in the USA, including: distributors, industrial manufacturers in America, bulk supplies and wholesalers of raw ingredients & finished goods.. Search for products or services, then visit the American suppliers website for prices, SDS or more information. How can I quickly grab items from a chest to my inventory? Chemical name (on IUPAC): 1,3-Dihydro-2-benzofuran-1,3-dione. Phthalic anhydride was first reported in 1836 by Auguste Laurent. Name of a product: Phthalic Anhydride (A technical grade). New Window. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. About 10% of maleic anhydrideis also produced: 1. Phthalic anhydride is obtained either by catalytic oxidation of ortho-xylene with O 2 or by catalytic oxidation of naphthalene (called the Gibbs phthalic anhydride process 1918). Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. If that is indeed the correct name, how is it derived? Wikipedia IUPAC names are in my experience about 50/50 , hence why I didn't just run with that. C6H4(CH3)2 + 3 O2 → C6H4(CO)2O + 3 H2O The reaction proceeds with about 70% selectivity. Use MathJax to format equations. It has a role as an allergen. The acid anhydride functional group results when two carboxylic acids combine and lose water (anhydride = without water). Phthalate esters plasticizers: The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride. Application. Nomenclature of Organic Chemistry – IUPAC Recommendations and Preferred Names 2013 (Blue Book), Numbering in phenolphthalein versus ascorbic acid. Description. GOST 7119-77. Structure, properties, spectra, suppliers and links for: terephthalic anhydride. Disposal. This information has not been reviewed or verified by the Agency or any other authority. Phthalic anhydride. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner. Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction. General information; Classification & Labelling & PBT assessment Maleic anhydride is obtained as a by-product from the production of Phthalic anhydride. It is an isomer of isophthalic acid and terephthalic acid. Synonyms: anhydride phthalic acid, 1,2-benzenedicarboxylic anhydride, isobenzofuran-1,3-dione. Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice. i think it doesn't matter, coz IUPAC nomenclature is designed such that each name refers to exactly one compound, but not necessarily the other way round. What compounds do Nor1 and Nor2 citalopram refer to? rev 2021.1.8.38287, The best answers are voted up and rise to the top, Chemistry Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, The preferred IUPAC name (PIN) of phthalic anhydride is. Aggiornare Internet Explorer a una versione più recente. You can also view suppliers in Australia, NZ or the UK. It was the first anhydride of a dicarboxylic acid to be used commercially. The locants cited correspond to the full bicyclic structure. PHTHALIC ANHYDRIDE - chemical information, properties, ... PHTHALIC ANHYDRIDE . How to arrive at the preferred IUPAC name for 1,2-diphenylethane? Heteroatoms are allocated lowest locants as a set, without regard to kind; if there is a choice, lowest locants are assigned in accordance with the seniority of the ‘a’ prefixes (…). Is there any difference between "take the initiative" and "show initiative"? Information on Registered Substances comes from registration dossiers which have been assigned a registration number. Finally, the corresponding pseudoketone is named using the suffix ‘one’ in accordance with rules expressed for ketones. The byproducts of the naphthalene reaction are carbon dioxide and water. Thanks for contributing an answer to Chemistry Stack Exchange! Phthalic anhydride is a skin irritant. CAS Number: 85-44-9 . How to name molecules with a hydroxyl group in a side chain? 2.1.1 IUPAC Name. The locant ‘2’ is assigned to the heteroatom and it is placed at the front of the name. Phthalic anhydride (molten) IUPAC Name: 2-benzofuran-1,3-dione . Chemical Formula: C 8 H 4 O 3. click here for details. Asking for help, clarification, or responding to other answers. CAS-number: 85-44-9 It only takes a minute to sign up. IUPAC Standard InChI: InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6 (5)8 (10)11-7/h1-4H. The locant ‘2’ is assigned to the heteroatom and it is placed at the front of the name. More contemporary routes include catalytic oxidation of ortho-xylene and naphthalene("Gibbs phthalic anhydride process"), although use of naphthalene has declined. MALEIC ANHYDRIDE. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2. Could someone help me please (preferably talk me through not just provide the answer) with the IUPAC name of phthalic anhydride? Chemical name (on IUPAC): 1,3-Dihydro-2-benzofuran-1,3-dione. CAS Number: 85-44-9 . Making statements based on opinion; back them up with references or personal experience. Should the stipend be paid if working remotely? Phthalic anhydride. Phthalic Anhydride Suppliers USA. REACH phthalic anhydride, distillation residues. To learn more, see our tips on writing great answers. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. (the "Gold Book"). In 2000, the worldwide production volume was estimated to be about 3 million tonnes per year. P-25.2.2.4 Heteromonocyclic components fused to a benzene ring, Unless listed as a retained name (…), a benzene ring fused to a heteromonocycle of five or more members (a benzoheterocycle) is named by placing the locant(s) indicating the position(s) of the heteroatom(s) at the front of the name consisting of the fusion prefix ‘benzo’ followed by a retained name, a Hantzsch-Widman systematic name, or a name formed by skeletal replacement (‘a’) nomenclature (…). Compare Products: Select up to 4 products. PHTHALIC ANHYDRIDE; 85-44-9; Isobenzofuran-1,3-dione ... MW: 148.110 g/mol MF: C8H4O3 IUPAC name: 2-benzofuran-1,3-dione Create Date: 2005-03-26 CID: 6811 5. 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