1.0 2009-12-03 20:13:26 UTC 2026-08-20 06:23:29 UTC T3D3643 Dicyclohexyl phthalate SmallMolecule Dicyclohexyl phthalate (C20H26O4) is a solid at room temperature with an average molecular weight of 330.42 g/mol. Dicyclohexyl phthalate belongs to the benzoic acids and derivatives, a subclass of benzene and substituted derivatives within the organic compounds. This exogenous compound is used industrially as a plasticizer and as processing aids not otherwise specified. The substance is present in plastics such as polyvinyl chloride, polyethylene terephthalate, polyurethane, and ethylene-vinyl acetate, and it is released in polystyrene and polypropylene. It has been found in or released from 25 recorded sources, including drinking water, indoor air, and various household cleaning and consumer products such as soap detergents, bleaching agents, and perfumes within detergents and soaps. Other sources include tobacco smoke filters, food contact materials, fermentation processes for beer, processing meats, and building and construction materials such as stairs and ramps as well as sunshades awnings or outside screens. Additionally, it is associated with electrical and electronic equipment, including electric switches, electric hearing aids, discharge lamps, communication cables or conductors, and conductors or conductive bodies characterised by the conductive materials. Exposure routes include touch, oral, and inhalation. Dicyclohexyl phthalate has six recorded protein targets, including the estrogen receptor (ESR1), nuclear receptor subfamily 1 group I member 2 (NR1I2), retinoic acid receptor RXR-beta (RXRB), and the vitamin D3 receptor (VDR), along with two other proteins. Its presence in polyamide remains inconclusive, and it has not been detected in polycarbonate. Household Toxin Industrial/Workplace Toxin Food Toxin Synthetic Toxin Organic Compound Plasticizer Aromatic Hydrocarbon Phthalate Ether Ester Food Toxin Cosmetic Toxin Household Toxin Industrial/Workplace Toxin Synthetic Compound 1, 2-Benzenedicarboxylic acid, dicyclohexyl ester 1,2-Benzenedicarboxylic acid, 1,2-dicyclohexyl ester 1,2-dicyclohexyl benzene-1,2-dicarboxylate Diclohexyl 1,2-benzenedicarboxylate Dicyclohexyl benzene-1,2-dicarboxylate Dicyclohexyl phalate Dicyclohexyl phthalic acid Diphenyl phthalate Ergoplast FDC Ergoplast.FDC Phthalic acid, dicyclohexyl ester C20H26O4 330.418 330.18310932 1,2-dicyclohexyl benzene-1,2-dicarboxylate dicyclohexyl phthalate 84-61-7 O=C(OC1CCCCC1)C1=CC=CC=C1C(=O)OC1CCCCC1 InChI=1S/C20H26O4/c21-19(23-15-9-3-1-4-10-15)17-13-7-8-14-18(17)20(22)24-16-11-5-2-6-12-16/h7-8,13-16H,1-6,9-12H2 VOWAEIGWURALJQ-UHFFFAOYSA-N Organic compounds Benzenoids Benzene and substituted derivatives Benzoic acids and derivatives Benzoic acid esters Benzoyl derivatives Carboxylic acid esters Dicarboxylic acids and derivatives Hydrocarbon derivatives Organic oxides Organooxygen compounds Aromatic homomonocyclic compound Benzoate ester Benzoyl Carboxylic acid derivative Carboxylic acid ester Dicarboxylic acid or derivatives Hydrocarbon derivative Organic oxide Organic oxygen compound Organooxygen compound Aromatic homomonocyclic compounds 2-hydroxyisophthalic acid Phthalates Detected and Not Quantified Exogenous Membrane Solid Colorless liquid. melting_point 66°C solubility 0.004 mg/mL at 24°C logp 5.2 logp 5.01 ALOGPS logs -5.48 ALOGPS solubility 1.09e-03 g/l ALOGPS logp 5.58 ChemAxon pka_strongest_basic -6.7 ChemAxon iupac 1,2-dicyclohexyl benzene-1,2-dicarboxylate ChemAxon average_mass 330.418 ChemAxon mono_mass 330.18310932 ChemAxon smiles O=C(OC1CCCCC1)C1=CC=CC=C1C(=O)OC1CCCCC1 ChemAxon formula C20H26O4 ChemAxon inchi InChI=1S/C20H26O4/c21-19(23-15-9-3-1-4-10-15)17-13-7-8-14-18(17)20(22)24-16-11-5-2-6-12-16/h7-8,13-16H,1-6,9-12H2 ChemAxon inchikey VOWAEIGWURALJQ-UHFFFAOYSA-N ChemAxon polar_surface_area 52.6 ChemAxon refractivity 92.14 ChemAxon polarizability 36.74 ChemAxon rotatable_bond_count 6 ChemAxon acceptor_count 2 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Oral (L1903) ; inhalation (L1903) ; dermal (L1903) Phthalate esters are endocrine disruptors. They decrease foetal testis testosterone production and reduce the expression of steroidogenic genes by decreasing mRNA expression. Some phthalates have also been shown to reduce the expression of insulin-like peptide 3 (insl3), an important hormone secreted by the Leydig cell necessary for development of the gubernacular ligament. Animal studies have shown that these effects disrupt reproductive development and can cause a number of malformations in affected young. (A2883) Phthalate esters are first hydrolyzed to their monoester derivative. Once formed, the monoester derivative can be further hydrolyzed in vivo to phthalic acid or conjugated to glucuronide, both of which can then be excreted. The terminal or next-to-last carbon atom in the monoester can also be oxidized to an alcohol, which can be excreted as is or first oxidized to an aldehyde, ketone, or carboxylic acid. The monoester and oxidative metabolites are excreted in the urine and faeces. (A2884) LD50: >3200 mg/kg (Oral, Mouse) (A725) LD50: 1600 mg/kg (Intraperitoneal, Mouse) (A725) No indication of carcinogenicity to humans (not listed by IARC). Phthalate esters are mainly used as plasticizers, primarily used to soften polyvinyl chloride. They are found in a number of products, including glues, building materials, personal care products, detergents and surfactants, packaging, children's toys, paints, pharmaceuticals, food products, and textiles. Phthalates are used in a variety of household applications such as shower curtains, vinyl upholstery, adhesives, floor tiles, food containers and wrappers, and cleaning materials. Personal care items containing phthalates include perfume, eye shadow, moisturizer, nail polish, liquid soap, and hair spray. (L1903) #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f7222574c48> Phthalate esters are endocrine disruptors and can cause a number of developmental malformations termed 'phthalate syndrome'. (A2883) 6777 6519 C14529 33308 O-ACETYLCARNITINE 18315717 18070048 7599160 European Chemicals Bureau (2000). IUCLID Dataset, Dicyclohexyl Phthalate (84-61-7). Wikipedia. Phthalate. Last Updated 22 November 2009.: http://en.wikipedia.org/wiki/Phthalate BE0000123 AC50 3.34 uM ATG_ERa_TRANS Attagene BE0000792 BE0000956 AC50 1.24 uM ATG_PXR_TRANS Attagene AC50 0.90 uM ATG_PXRE_CIS Attagene BE0000779 AC50 4.68 uM ATG_VDRE_CIS Attagene BE0000736 AC50 7.12 uM NVS_MP_hPBR Novascreen BE0000078 AC50 7.81 uM ATG_RXRb_TRANS Attagene