| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2017-08-01 01:39:28 UTC |
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| Update Date | 2021-09-14 15:44:55 UTC |
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| HMDB ID | HMDB0094645 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Mono-(2-ethyl-5-oxohexyl) phthalate |
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| Description | Mono-(2-ethyl-5-oxohexyl) phthalate, also known as 2-{[(2-ethyl-5-oxohexyl)oxy]carbonyl}benzoic acid, mono(2-Ethyl-5-oxohexyl) phthalate or phthalate mono(2-ethyl-5-oxohexyl) ester, is classified as a member of the benzoic acid esters. Benzoic acid esters are ester derivatives of benzoic acid. Mono-(2-ethyl-5-oxohexyl) phthalate is considered to be practically insoluble (in water) and acidic. (ChemoSummarizer). Mono-(2-ethyl-5-oxohexyl) phthalate is a metabolite of mono(2-ethylhexyl) phthalate (MEHP) and a secondary metabolite of di(2-ethylhexyl) phthalate (DEHP). |
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| Structure | CCC(CCC(C)=O)COC(=O)C1=CC=CC=C1C(O)=O InChI=1S/C16H20O5/c1-3-12(9-8-11(2)17)10-21-16(20)14-7-5-4-6-13(14)15(18)19/h4-7,12H,3,8-10H2,1-2H3,(H,18,19) |
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| Synonyms | | Value | Source |
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| 1,2-Benzenedicarboxylic acid, mono(2-ethyl-5-oxohexyl) ester | ChEBI | | mono(2-Ethyl-5-oxohexyl) 1,2-benzenedicarboxylate | ChEBI | | Phthalic acid mono(2-ethyl-5-oxohexyl) ester | ChEBI | | 1,2-Benzenedicarboxylate, mono(2-ethyl-5-oxohexyl) ester | Generator | | mono(2-Ethyl-5-oxohexyl) 1,2-benzenedicarboxylic acid | Generator | | Phthalate mono(2-ethyl-5-oxohexyl) ester | Generator | | mono(2-Ethyl-5-oxohexyl) phthalic acid | Generator | | ME(O)HP | MeSH, HMDB | | MEOHP CPD | MeSH, HMDB | | mono(2-Ethyl-5-oxohexyl) phthalate | MeSH, HMDB | | mono(2-Ethyl-5-oxohexyl)phthalate | MeSH, HMDB | | mono-(2-Ethyl-5-oxohexyl) phthalic acid | Generator |
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| Chemical Formula | C16H20O5 |
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| Average Molecular Weight | 292.331 |
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| Monoisotopic Molecular Weight | 292.131073744 |
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| IUPAC Name | 2-{[(2-ethyl-5-oxohexyl)oxy]carbonyl}benzoic acid |
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| Traditional Name | 2-{[(2-ethyl-5-oxohexyl)oxy]carbonyl}benzoic acid |
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| CAS Registry Number | Not Available |
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| SMILES | CCC(CCC(C)=O)COC(=O)C1=CC=CC=C1C(O)=O |
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| InChI Identifier | InChI=1S/C16H20O5/c1-3-12(9-8-11(2)17)10-21-16(20)14-7-5-4-6-13(14)15(18)19/h4-7,12H,3,8-10H2,1-2H3,(H,18,19) |
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| InChI Key | HCWNFKHKKHNSSL-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
- Ketone
- Carboxylic acid ester
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | |
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| Role | |
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| Physical Properties |
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| State | Not Available |
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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 Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 7.65 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 14.1674 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.48 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2609.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 356.5 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 174.5 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 188.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 240.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 617.6 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 702.4 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 69.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1169.5 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 478.1 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1468.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 366.1 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 464.5 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 245.2 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 241.6 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 27.8 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Mono-(2-ethyl-5-oxohexyl) phthalate,1TMS,isomer #1 | CCC(CCC(C)=O)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C | 2292.5 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,1TMS,isomer #2 | CCC(CC=C(C)O[Si](C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O | 2422.9 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,1TMS,isomer #3 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O)O[Si](C)(C)C | 2373.6 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TMS,isomer #1 | CCC(CC=C(C)O[Si](C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C | 2425.5 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TMS,isomer #1 | CCC(CC=C(C)O[Si](C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C | 2333.4 | Standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TMS,isomer #1 | CCC(CC=C(C)O[Si](C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C | 2733.6 | Standard polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TMS,isomer #2 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2401.0 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TMS,isomer #2 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2321.9 | Standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TMS,isomer #2 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2739.4 | Standard polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,1TBDMS,isomer #1 | CCC(CCC(C)=O)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C | 2510.6 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,1TBDMS,isomer #2 | CCC(CC=C(C)O[Si](C)(C)C(C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O | 2665.7 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,1TBDMS,isomer #3 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O)O[Si](C)(C)C(C)(C)C | 2602.7 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TBDMS,isomer #1 | CCC(CC=C(C)O[Si](C)(C)C(C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C | 2864.3 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TBDMS,isomer #1 | CCC(CC=C(C)O[Si](C)(C)C(C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C | 2711.9 | Standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TBDMS,isomer #1 | CCC(CC=C(C)O[Si](C)(C)C(C)(C)C)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C | 2945.2 | Standard polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TBDMS,isomer #2 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2828.4 | Semi standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TBDMS,isomer #2 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2700.5 | Standard non polar | 33892256 | | Mono-(2-ethyl-5-oxohexyl) phthalate,2TBDMS,isomer #2 | C=C(CCC(CC)COC(=O)C1=CC=CC=C1C(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2966.9 | Standard polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate GC-MS (Non-derivatized) - 70eV, Positive | splash10-0005-7910000000-af53d459793375ed98d5 | 2017-09-14 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate GC-MS (1 TMS) - 70eV, Positive | splash10-00dl-9271000000-87ee8d29dd11a2490d47 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 10V, Negative-QTOF | splash10-0006-0290000000-631438533aed2a462f47 | 2017-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 20V, Negative-QTOF | splash10-06fv-3970000000-16c78b44ee2264bd7ed5 | 2017-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 40V, Negative-QTOF | splash10-0axr-8900000000-63180ae264e91f89f29c | 2017-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 10V, Positive-QTOF | splash10-004i-0490000000-435081065c35fc2df1b4 | 2017-09-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 20V, Positive-QTOF | splash10-056s-3960000000-90a58c088519fb396abb | 2017-09-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 40V, Positive-QTOF | splash10-0aor-9700000000-f7baeb01360dba9454c3 | 2017-09-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 10V, Positive-QTOF | splash10-056v-0390000000-bb040cd2d4db334eac18 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 20V, Positive-QTOF | splash10-052b-0930000000-4d8ff857f5c913ecec49 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 40V, Positive-QTOF | splash10-05g1-3900000000-58a0f1466d182d682f1d | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 10V, Negative-QTOF | splash10-0fdp-4940000000-abf03287938e19a25faf | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 20V, Negative-QTOF | splash10-00fr-6930000000-5004426e41dde9671cd3 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Mono-(2-ethyl-5-oxohexyl) phthalate 40V, Negative-QTOF | splash10-004i-9200000000-3fb0ca039f8904e6a48e | 2021-09-23 | Wishart Lab | View Spectrum |
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| General References | - Jukic AM, Calafat AM, McConnaughey DR, Longnecker MP, Hoppin JA, Weinberg CR, Wilcox AJ, Baird DD: Urinary Concentrations of Phthalate Metabolites and Bisphenol A and Associations with Follicular-Phase Length, Luteal-Phase Length, Fecundability, and Early Pregnancy Loss. Environ Health Perspect. 2016 Mar;124(3):321-8. doi: 10.1289/ehp.1408164. Epub 2015 Jul 10. [PubMed:26161573 ]
- Hauser R, Gaskins AJ, Souter I, Smith KW, Dodge LE, Ehrlich S, Meeker JD, Calafat AM, Williams PL: Urinary Phthalate Metabolite Concentrations and Reproductive Outcomes among Women Undergoing in Vitro Fertilization: Results from the EARTH Study. Environ Health Perspect. 2016 Jun;124(6):831-9. doi: 10.1289/ehp.1509760. Epub 2015 Nov 6. [PubMed:26545148 ]
- Wang YX, Zeng Q, Sun Y, Yang P, Wang P, Li J, Huang Z, You L, Huang YH, Wang C, Li YF, Lu WQ: Semen phthalate metabolites, semen quality parameters and serum reproductive hormones: A cross-sectional study in China. Environ Pollut. 2016 Apr;211:173-82. doi: 10.1016/j.envpol.2015.12.052. Epub 2016 Jan 14. [PubMed:26766535 ]
- Alves A, Vanermen G, Covaci A, Voorspoels S: Ultrasound assisted extraction combined with dispersive liquid-liquid microextraction (US-DLLME)-a fast new approach to measure phthalate metabolites in nails. Anal Bioanal Chem. 2016 Sep;408(22):6169-80. doi: 10.1007/s00216-016-9727-1. Epub 2016 Jul 2. [PubMed:27372718 ]
- Jo A, Kim H, Chung H, Chang N: Associations between Dietary Intake and Urinary Bisphenol A and Phthalates Levels in Korean Women of Reproductive Age. Int J Environ Res Public Health. 2016 Jul 5;13(7). pii: E680. doi: 10.3390/ijerph13070680. [PubMed:27399734 ]
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