1.0 2016-05-19 04:01:40 UTC 2026-08-25 16:29:50 UTC Trimellitic Anhydride SmallMolecule Trimellitic Anhydride (C9H4O5) is an organic compound with an average molecular weight of 192.13 g/mol. Trimellitic Anhydride belongs to the benzofuranones, a subclass of benzofurans within the organic compounds. This compound is found in or released from 32 recorded sources. These include household cleaning and consumer products such as soap detergents, perfumes within detergents and soaps, cigar cigarettes, and tobacco smoke filters. It is also associated with food, food processing and cookware, specifically processing meats, food preservation, and fermentation processes for beer. Within building and construction, it is found in roofs, floors, ceilings, and tents or canopies. It is present in drinking water and water supply, as well as electrical and electronic equipment, including coils, antennas, communication cables or conductors, auxiliary devices, and conductors or conductive bodies characterised by the conductive materials, among 15 more. The recorded exposure routes for trimellitic anhydride include oral intake, while inhalation is an exposure route supported by literature (PMC2978643). Regarding health effects, the compound is associated with asthma (PMC2978643). 1,2,4-Benzenetricarboxylic acid, cyclic-1,2-anhydride 1,3-dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid benzene-1,2,4-tricarboxylic acid 1,2-anhydride C9H4O5 192.126 192.005873229 1,3-dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid trimellitic anhydride 552-30-7 OC(=O)C1=CC2=C(C=C1)C(=O)OC2=O InChI=1S/C9H4O5/c10-7(11)4-1-2-5-6(3-4)9(13)14-8(5)12/h1-3H,(H,10,11) SRPWOOOHEPICQU-UHFFFAOYSA-N Organic compounds Organoheterocyclic compounds Benzofurans Benzofuranones Phthalic anhydrides Benzenoids Carboxylic acid anhydrides Carboxylic acids Hydrocarbon derivatives Isobenzofuranones Organic oxides Organooxygen compounds Oxacyclic compounds Tricarboxylic acids and derivatives Aromatic heteropolycyclic compound Benzenoid Carboxylic acid Carboxylic acid anhydride Carboxylic acid derivative Hydrocarbon derivative Isobenzofuranone Isocoumaran Organic oxide Organic oxygen compound Organooxygen compound Oxacycle Phthalic anhydride Phthalic_anhydride Tricarboxylic acid or derivatives Aromatic heteropolycyclic compounds 2-benzofurans cyclic dicarboxylic anhydride dioxo monocarboxylic acid Detected and Not Quantified logp 0.8 logp 0.98 ALOGPS logs -1.82 ALOGPS solubility 2.89e+00 g/l ALOGPS logp 1.08 ChemAxon pka_strongest_acidic 3.38 ChemAxon pka_strongest_basic -6.9 ChemAxon iupac 1,3-dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid ChemAxon average_mass 192.126 ChemAxon mono_mass 192.005873229 ChemAxon smiles OC(=O)C1=CC2=C(C=C1)C(=O)OC2=O ChemAxon formula C9H4O5 ChemAxon inchi InChI=1S/C9H4O5/c10-7(11)4-1-2-5-6(3-4)9(13)14-8(5)12/h1-3H,(H,10,11) ChemAxon inchikey SRPWOOOHEPICQU-UHFFFAOYSA-N ChemAxon polar_surface_area 80.67 ChemAxon refractivity 44.62 ChemAxon polarizability 16.41 ChemAxon rotatable_bond_count 1 ChemAxon acceptor_count 4 ChemAxon donor_count 1 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f3baf3db2c8> 11089 10618