Record Information |
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Version | 5.0 |
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Status | Detected and Quantified |
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Creation Date | 2009-11-30 15:51:40 UTC |
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Update Date | 2021-09-14 15:45:46 UTC |
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HMDB ID | HMDB0013248 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Monoethylhexyl phthalic acid |
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Description | Monoethylhexyl phthalic acid (MEHP) is an active metabolite of Bis(2-ethylhexyl)phthalate (DEHP). DEHP measured from the blood of pregnant women have been significantly associated with the decreased penis width, shorter anogenital distance, and the incomplete descent of testes of their newborn sons, replicating effects identified in animals(Wikipedia). DEHP hydrolyzes to MEHP via the enzyme Bis(2-ethylhexyl)phthalate acylhydrolase(3.1.1.60)and subsequently to phthalate salts. The released alcohol is susceptible to oxidation to the aldehyde and carboxylic acid. |
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Structure | CCCCC(CC)COC(=O)C1=CC=CC=C1C(O)=O InChI=1S/C16H22O4/c1-3-5-8-12(4-2)11-20-16(19)14-10-7-6-9-13(14)15(17)18/h6-7,9-10,12H,3-5,8,11H2,1-2H3,(H,17,18) |
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Synonyms | Value | Source |
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(2-Ethylhexyl) hydrogen phthalate | ChEBI | 1,2-Benzenedicarboxylic acid, mono(2-ethylhexyl) ester | ChEBI | 2-([(2-Ethylhexyl)oxy]carbonyl)benzoic acid | ChEBI | 2-Ethylhexyl hydrogen phthalate | ChEBI | 2-Ethylhexyl phthalate | ChEBI | MEHP | ChEBI | mono(2-Ethylhexyl)phthalate | ChEBI | mono-(2-Ethylhexyl)phthalate | ChEBI | mono-2-Ethylhexyl phthalate | ChEBI | Monoethylhexyl phthalate | ChEBI | Phthalic acid, 2-ethylhexyl ester | ChEBI | (2-Ethylhexyl) hydrogen phthalic acid | Generator | 1,2-Benzenedicarboxylate, mono(2-ethylhexyl) ester | Generator | 2-([(2-Ethylhexyl)oxy]carbonyl)benzoate | Generator | 2-Ethylhexyl hydrogen phthalic acid | Generator | 2-Ethylhexyl phthalic acid | Generator | mono(2-Ethylhexyl)phthalic acid | Generator | mono-(2-Ethylhexyl)phthalic acid | Generator | mono-2-Ethylhexyl phthalic acid | Generator | Phthalate, 2-ethylhexyl ester | Generator | MEHP CPD | MeSH | mono(Ethylhexyl) phthalate | MeSH | mono-(2-Ethylhexyl)phthalate, sodium salt | MeSH | 1,2-Benzenedicarboxylicacid,mono(2-ethylhexyl)ester | HMDB | mono-Ethylhexyl | HMDB | mono-Ethylhexylphthalate | HMDB | Monoethylhexyl phthalate (mehp) | HMDB | Monoethylhexylphthalate | HMDB | MONOOCTYL phthalATE | HMDB | Phthalic acid 1-hydrogen 2-(2-ethylhexyl) ester | HMDB | Phthalic acid hydrogen 1-(2-ethylhexyl) ester | HMDB | PHTHALIC ACID mono-2-ethylhexyl ester | HMDB | PHTHALIC ACID monooctyl ester | HMDB | Phthalicacid,2-ethylhexylester | HMDB | phthalicacidmono-2-ETHYLEXYLESTER | HMDB | PHTHALICACIDMONOETHYLHEXYL | HMDB | Phthalicacidmonoethylhexylester | HMDB | Monoethylhexyl phthalic acid | Generator | mono(2-Ethylhexyl) phthalic acid | Generator |
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Chemical Formula | C16H22O4 |
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Average Molecular Weight | 278.3435 |
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Monoisotopic Molecular Weight | 278.151809192 |
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IUPAC Name | 2-{[(2-ethylhexyl)oxy]carbonyl}benzoic acid |
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Traditional Name | bar 1 |
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CAS Registry Number | 4376-20-9 |
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SMILES | CCCCC(CC)COC(=O)C1=CC=CC=C1C(O)=O |
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InChI Identifier | InChI=1S/C16H22O4/c1-3-5-8-12(4-2)11-20-16(19)14-10-7-6-9-13(14)15(17)18/h6-7,9-10,12H,3-5,8,11H2,1-2H3,(H,17,18) |
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InChI Key | DJDSLBVSSOQSLW-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as benzoic acid esters. These are ester derivatives of benzoic acid. |
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Kingdom | Organic compounds |
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Super Class | Benzenoids |
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Class | Benzene and substituted derivatives |
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Sub Class | Benzoic acids and derivatives |
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Direct Parent | Benzoic acid esters |
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Alternative Parents | |
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Substituents | - Benzoate ester
- Benzoic acid
- Benzoyl
- Dicarboxylic acid or derivatives
- Carboxylic acid ester
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Aromatic homomonocyclic compound
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Molecular Framework | Aromatic homomonocyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | Not Available |
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Role | Not Available |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatizedDerivatized |
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Spectra |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental GC-MS | GC-MS Spectrum - Monoethylhexyl phthalic acid GC-EI-TOF (Non-derivatized) | splash10-00dj-2970000000-346112e2dd7eb2ef672f | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Monoethylhexyl phthalic acid GC-EI-TOF (Non-derivatized) | splash10-00dj-2970000000-346112e2dd7eb2ef672f | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Monoethylhexyl phthalic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0002-5920000000-6756fbba86aadca647ce | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Monoethylhexyl phthalic acid GC-MS (1 TMS) - 70eV, Positive | splash10-00di-7392000000-fd40ccd8c52320562e5c | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Monoethylhexyl phthalic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | MS | Mass Spectrum (Electron Ionization) | splash10-0002-4900000000-af0f2c76a7c01b845a00 | 2014-09-20 | Not Available | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 30V, Positive-QTOF | splash10-006t-0960000000-efbb62fb904150b613f2 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 15V, Positive-QTOF | splash10-006t-0960000000-bace63e54682391af671 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 45V, Positive-QTOF | splash10-00kb-0910000000-77eed661ab413010d354 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 60V, Positive-QTOF | splash10-00mk-0900000000-214bdb75cf5614522a03 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 45V, Negative-QTOF | splash10-00ai-0900000000-d636e4277afd375744d2 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 30V, Negative-QTOF | splash10-001i-0900000000-e6f221aefc0e24f648d5 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 75V, Positive-QTOF | splash10-002b-0900000000-d8cdf715271ec6e661b8 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 15V, Negative-QTOF | splash10-0059-0940000000-bbc0013de532edede483 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 90V, Negative-QTOF | splash10-004i-9100000000-d5a5ecd4f3c706f53a0f | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 45V, Positive-QTOF | splash10-00kb-0910000000-a2eba6e125597cb7530d | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 60V, Negative-QTOF | splash10-00b9-2900000000-1d8439ed7614ed714822 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 75V, Negative-QTOF | splash10-004i-9800000000-3f611dc53f826ce06536 | 2021-09-20 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 10V, Positive-QTOF | splash10-03fr-0790000000-972234c38f1e6baf9909 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 20V, Positive-QTOF | splash10-03di-4930000000-1ab987bce4973d4f07f4 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 40V, Positive-QTOF | splash10-0a4l-9500000000-53028683cce560c7a65b | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 10V, Negative-QTOF | splash10-004i-0490000000-44a004dad8099c4e00de | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 20V, Negative-QTOF | splash10-00w9-1940000000-8169435369a241584a63 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 40V, Negative-QTOF | splash10-00fr-6900000000-56a7cc157be52d6494f3 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 10V, Positive-QTOF | splash10-004i-0290000000-bf11acdb8d5f1fa06aa5 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 20V, Positive-QTOF | splash10-0532-2940000000-474dfefcab564610df5f | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 40V, Positive-QTOF | splash10-0a4i-9500000000-0b315e8ad86892867d12 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 10V, Negative-QTOF | splash10-004i-0290000000-048ea11376b7fe328007 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 20V, Negative-QTOF | splash10-00b9-5950000000-012e94386a547e3c0c23 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Monoethylhexyl phthalic acid 40V, Negative-QTOF | splash10-004i-9410000000-a8dbecb62f34e602da89 | 2021-09-25 | Wishart Lab | View Spectrum |
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Biological Properties |
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Cellular Locations | - Membrane (predicted from logP)
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Biospecimen Locations | |
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Tissue Locations | Not Available |
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Pathways | |
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Normal Concentrations |
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Blood | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | Urine | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | Urine | Detected and Quantified | 0.00109 (0.000971-0.00123) umol/mmol creatinine | Adult (>18 years old) | Not Specified | Normal | | details | Urine | Detected and Quantified | 0.000865 (0.000772-0.000975) umol/mmol creatinine | Children (1-13 years old) | Not Specified | Normal | | details |
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Abnormal Concentrations |
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Sweat | Detected but not Quantified | Not Quantified | Infant (0-1 year old) | Not Specified | screen-positive CF | | details |
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Associated Disorders and Diseases |
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Disease References | Cystic fibrosis |
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- Adriana Nori de Macedo. Robust capillary electrophoresis methods for biomarker discovery and routine measurements in clinical and epidemiological applications. March 2017 [Link]
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Associated OMIM IDs | |
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External Links |
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DrugBank ID | Not Available |
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Phenol Explorer Compound ID | Not Available |
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FooDB ID | FDB029358 |
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KNApSAcK ID | Not Available |
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Chemspider ID | 19208 |
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KEGG Compound ID | C03343 |
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BioCyc ID | Not Available |
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BiGG ID | Not Available |
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Wikipedia Link | Not Available |
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METLIN ID | Not Available |
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PubChem Compound | 20393 |
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PDB ID | Not Available |
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ChEBI ID | 17243 |
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Food Biomarker Ontology | Not Available |
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VMH ID | Not Available |
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MarkerDB ID | Not Available |
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Good Scents ID | Not Available |
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References |
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Synthesis Reference | Not Available |
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Material Safety Data Sheet (MSDS) | Not Available |
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General References | - Hasmall S, Orphanides G, James N, Pennie W, Hedley K, Soames A, Kimber I, Roberts R: Downregulation of lactoferrin by PPARalpha ligands: role in perturbation of hepatocyte proliferation and apoptosis. Toxicol Sci. 2002 Aug;68(2):304-13. [PubMed:12151626 ]
- Hasmall SC, James NH, Macdonald N, West D, Chevalier S, Cosulich SC, Roberts RA: Suppression of apoptosis and induction of DNA synthesis in vitro by the phthalate plasticizers monoethylhexylphthalate (MEHP) and diisononylphthalate (DINP): a comparison of rat and human hepatocytes in vitro. Arch Toxicol. 1999 Nov;73(8-9):451-6. [PubMed:10650916 ]
- Anderson WA, Barnes KA, Castle L, Damant AP, Scotter MJ: Determination of isotopically labelled monoesterphthalates in urine by high performance liquid chromatography-mass spectrometry. Analyst. 2002 Sep;127(9):1193-7. [PubMed:12375842 ]
- Marttinen SK, Kettunen RH, Sormunen KM, Rintala JA: Removal of bis(2-ethylhexyl) phthalate at a sewage treatment plant. Water Res. 2003 Mar;37(6):1385-93. [PubMed:12598201 ]
- Quintana JB, Rodil R, Reemtsma T: Determination of phosphoric acid mono- and diesters in municipal wastewater by solid-phase extraction and ion-pair liquid chromatography-tandem mass spectrometry. Anal Chem. 2006 Mar 1;78(5):1644-50. [PubMed:16503618 ]
- Luisi S, Latini G, de Felice C, Sanseverino F, di Pasquale D, Mazzeo P, Petraglia F: Low serum concentrations of di-(2-ethylhexyl)phthalate in women with uterine fibromatosis. Gynecol Endocrinol. 2006 Feb;22(2):92-5. [PubMed:16603434 ]
- Howdeshell KL, Furr J, Lambright CR, Rider CV, Wilson VS, Gray LE Jr: Cumulative effects of dibutyl phthalate and diethylhexyl phthalate on male rat reproductive tract development: altered fetal steroid hormones and genes. Toxicol Sci. 2007 Sep;99(1):190-202. Epub 2007 Mar 30. [PubMed:17400582 ]
- Lovekamp-Swan T, Davis BJ: Mechanisms of phthalate ester toxicity in the female reproductive system. Environ Health Perspect. 2003 Feb;111(2):139-45. [PubMed:12573895 ]
- Kambia K, Dine T, Gressier B, Dupin-Spriet T, Luyckx M, Brunet C: Evaluation of the direct toxicity of trioctyltrimellitate (TOTM), di(2-ethylhexyl) phthalate (DEHP) and their hydrolysis products on isolated rat hepatocytes. Int J Artif Organs. 2004 Nov;27(11):971-8. [PubMed:15636055 ]
- Rosado-Berrios CA, Velez C, Zayas B: Mitochondrial permeability and toxicity of diethylhexyl and monoethylhexyl phthalates on TK6 human lymphoblasts cells. Toxicol In Vitro. 2011 Dec;25(8):2010-6. doi: 10.1016/j.tiv.2011.08.001. Epub 2011 Aug 16. [PubMed:21864672 ]
- Rokos CL, Ledwith BJ: Peroxisome proliferators activate extracellular signal-regulated kinases in immortalized mouse liver cells. J Biol Chem. 1997 May 16;272(20):13452-7. [PubMed:9148971 ]
- Forgacs AL, Ding Q, Jaremba RG, Huhtaniemi IT, Rahman NA, Zacharewski TR: BLTK1 murine Leydig cells: a novel steroidogenic model for evaluating the effects of reproductive and developmental toxicants. Toxicol Sci. 2012 Jun;127(2):391-402. doi: 10.1093/toxsci/kfs121. Epub 2012 Mar 29. [PubMed:22461451 ]
- Janer G, Verhoef A, Gilsing HD, Piersma AH: Use of the rat postimplantation embryo culture to assess the embryotoxic potency within a chemical category and to identify toxic metabolites. Toxicol In Vitro. 2008 Oct;22(7):1797-805. doi: 10.1016/j.tiv.2008.07.007. Epub 2008 Jul 15. [PubMed:18675337 ]
- Theunissen PT, Robinson JF, Pennings JL, van Herwijnen MH, Kleinjans JC, Piersma AH: Compound-specific effects of diverse neurodevelopmental toxicants on global gene expression in the neural embryonic stem cell test (ESTn). Toxicol Appl Pharmacol. 2012 Aug 1;262(3):330-40. doi: 10.1016/j.taap.2012.05.011. Epub 2012 May 23. [PubMed:22634333 ]
- Hoppin JA, Brock JW, Davis BJ, Baird DD: Reproducibility of urinary phthalate metabolites in first morning urine samples. Environ Health Perspect. 2002 May;110(5):515-8. [PubMed:12003755 ]
- Kato K, Shoda S, Takahashi M, Doi N, Yoshimura Y, Nakazawa H: Determination of three phthalate metabolites in human urine using on-line solid-phase extraction-liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 May 25;788(2):407-11. [PubMed:12705982 ]
- Koo HJ, Lee BM: Human monitoring of phthalates and risk assessment. J Toxicol Environ Health A. 2005 Aug 27;68(16):1379-92. [PubMed:16009652 ]
- Kim SH, Chun S, Jang JY, Chae HD, Kim CH, Kang BM: Increased plasma levels of phthalate esters in women with advanced-stage endometriosis: a prospective case-control study. Fertil Steril. 2011 Jan;95(1):357-9. doi: 10.1016/j.fertnstert.2010.07.1059. Epub 2010 Aug 25. [PubMed:20797718 ]
- Ge RS, Chen GR, Dong Q, Akingbemi B, Sottas CM, Santos M, Sealfon SC, Bernard DJ, Hardy MP: Biphasic effects of postnatal exposure to diethylhexylphthalate on the timing of puberty in male rats. J Androl. 2007 Jul-Aug;28(4):513-20. Epub 2007 Feb 7. [PubMed:17287459 ]
- Hoppin JA, Ulmer R, London SJ: Phthalate exposure and pulmonary function. Environ Health Perspect. 2004 Apr;112(5):571-4. [PubMed:15064163 ]
- Barron MG, Schultz IR, Hayton WL: Presystemic branchial metabolism limits di-2-ethylhexyl phthalate accumulation in fish. Toxicol Appl Pharmacol. 1989 Mar 15;98(1):49-57. [PubMed:2929021 ]
- Holm A, Solbu K, Molander P, Lundanes E, Greibrokk T: Sensitive biomonitoring of phthalate metabolites in human urine using packed capillary column switching liquid chromatography coupled to electrospray ionization ion-trap mass spectrometry. Anal Bioanal Chem. 2004 Apr;378(7):1762-8. Epub 2004 Jan 31. [PubMed:14758462 ]
- Christen V, Crettaz P, Oberli-Schrammli A, Fent K: Some flame retardants and the antimicrobials triclosan and triclocarban enhance the androgenic activity in vitro. Chemosphere. 2010 Nov;81(10):1245-52. doi: 10.1016/j.chemosphere.2010.09.031. Epub 2010 Oct 12. [PubMed:20943248 ]
- Ellero-Simatos S, Claus SP, Benelli C, Forest C, Letourneur F, Cagnard N, Beaune PH, de Waziers I: Combined transcriptomic-(1)H NMR metabonomic study reveals that monoethylhexyl phthalate stimulates adipogenesis and glyceroneogenesis in human adipocytes. J Proteome Res. 2011 Dec 2;10(12):5493-502. doi: 10.1021/pr200765v. Epub 2011 Nov 9. [PubMed:22017230 ]
- Rose ML, Rivera CA, Bradford BU, Graves LM, Cattley RC, Schoonhoven R, Swenberg JA, Thurman RG: Kupffer cell oxidant production is central to the mechanism of peroxisome proliferators. Carcinogenesis. 1999 Jan;20(1):27-33. [PubMed:9934846 ]
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