| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2012-09-11 17:30:27 UTC |
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| Update Date | 2023-02-21 17:18:47 UTC |
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| HMDB ID | HMDB0029444 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 2-Pyrrolidineacetic acid |
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| Description | 2-Pyrrolidineacetic acid (CAS: 56879-46-0), also known as homoproline, belongs to the class of organic compounds known as pyrrolidines. Pyrrolidines are compounds containing a pyrrolidine ring, which is a five-membered saturated aliphatic heterocycle with one nitrogen atom and four carbon atoms. 2-Pyrrolidineacetic acid has been identified in the urine of pregnant women (PMID: 32101413 ). 2-Pyrrolidineacetic acid is found in tea. 2-Pyrrolidineacetic acid occurs in Tussilago farfara (coltsfoot). |
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| Structure | InChI=1S/C6H11NO2/c8-6(9)4-5-2-1-3-7-5/h5,7H,1-4H2,(H,8,9)/t5-/m0/s1 |
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| Synonyms | | Value | Source |
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| 2-Pyrrolidineacetate | Generator | | (2S)-2-Pyrrolidineacetic acid | HMDB | | (S)-2-(2-Pyrrolidinyl)acetic acid | HMDB | | (S)-2-Pyrrolidineacetic acid | HMDB | | (S)-Homoproline | HMDB | | 2-(Pyrrolidin-2-yl)acetic acid | HMDB | | 2-[(2S)-Pyrrolidin-1-ium-2-yl]acetate | HMDB | | 2-[(2S)-Pyrrolidin-2-yl]acetic acid | HMDB | | Homoproline | HMDB | | L-(+)-Homoproline | HMDB | | L-beta-Homoproline | HMDB | | L-Β-homoproline | HMDB | | beta-Homoproline | HMDB | | Β-homoproline | HMDB | | 2-Pyrrolidineacetic acid | HMDB |
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| Chemical Formula | C6H11NO2 |
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| Average Molecular Weight | 129.159 |
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| Monoisotopic Molecular Weight | 129.078978598 |
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| IUPAC Name | 2-[(2S)-pyrrolidin-2-yl]acetic acid |
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| Traditional Name | (2S)-pyrrolidin-2-ylacetic acid |
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| CAS Registry Number | 56633-75-1 |
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| SMILES | OC(=O)C[C@@H]1CCCN1 |
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| InChI Identifier | InChI=1S/C6H11NO2/c8-6(9)4-5-2-1-3-7-5/h5,7H,1-4H2,(H,8,9)/t5-/m0/s1 |
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| InChI Key | ADSALMJPJUKESW-YFKPBYRVSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as pyrrolidines. Pyrrolidines are compounds containing a pyrrolidine ring, which is a five-membered saturated aliphatic heterocycle with one nitrogen atom and four carbon atoms. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Pyrrolidines |
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| Sub Class | Not Available |
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| Direct Parent | Pyrrolidines |
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| Alternative Parents | |
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| Substituents | - Pyrrolidine
- Amino acid or derivatives
- Amino acid
- Carboxylic acid derivative
- Carboxylic acid
- Secondary aliphatic amine
- Monocarboxylic acid or derivatives
- Azacycle
- Secondary amine
- Amine
- Organooxygen compound
- Organonitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Carbonyl group
- Organic nitrogen compound
- Aliphatic heteromonocyclic compound
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| Molecular Framework | Aliphatic heteromonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Not Available | Not Available |
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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. | 1.26 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 8.2745 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 5.41 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 351.9 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 419.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 273.7 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 63.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 175.3 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 49.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 263.3 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 | 228.0 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 750.1 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 543.3 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 35.9 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 | 597.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 183.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 201.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 845.6 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 497.9 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 | 320.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 2-Pyrrolidineacetic acid,1TMS,isomer #1 | C[Si](C)(C)OC(=O)C[C@@H]1CCCN1 | 1260.8 | Semi standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,1TMS,isomer #2 | C[Si](C)(C)N1CCC[C@H]1CC(=O)O | 1379.8 | Semi standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,2TMS,isomer #1 | C[Si](C)(C)OC(=O)C[C@@H]1CCCN1[Si](C)(C)C | 1405.0 | Semi standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,2TMS,isomer #1 | C[Si](C)(C)OC(=O)C[C@@H]1CCCN1[Si](C)(C)C | 1452.6 | Standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C[C@@H]1CCCN1 | 1508.8 | Semi standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1CCC[C@H]1CC(=O)O | 1649.7 | Semi standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C[C@@H]1CCCN1[Si](C)(C)C(C)(C)C | 1878.9 | Semi standard non polar | 33892256 | | 2-Pyrrolidineacetic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C[C@@H]1CCCN1[Si](C)(C)C(C)(C)C | 1873.2 | Standard non polar | 33892256 |
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| Spectra |
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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 - 2-Pyrrolidineacetic acid 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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| Experimental LC-MS/MS | LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 30V, Positive-QTOF | splash10-00di-9000000000-cacf970aa27b5aa759d1 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 10V, Negative-QTOF | splash10-004i-3900000000-ce6ac17f92dd8495db52 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 20V, Negative-QTOF | splash10-07xu-9400000000-ed434ba6a6858632568d | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 40V, Negative-QTOF | splash10-0006-9000000000-3a470456e7f26a10f6c4 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 10V, Positive-QTOF | splash10-01q9-8900000000-4793db85ef6e0e0f532a | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 20V, Positive-QTOF | splash10-00e9-9100000000-83ca812f23e0f1dbb8c4 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Pyrrolidineacetic acid 40V, Positive-QTOF | splash10-00dl-9000000000-b0b41f8697b74fb81964 | 2021-09-22 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum |
IR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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| Biological Properties |
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| Cellular Locations | |
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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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| Not Available |
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| Abnormal Concentrations |
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| Urine | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Female | Pregnancy | | details |
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| Associated Disorders and Diseases |
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| Disease References | None |
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| Associated OMIM IDs | None |
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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 | FDB000554 |
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| KNApSAcK ID | Not Available |
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| Chemspider ID | 2042269 |
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| KEGG Compound ID | Not Available |
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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 | 2761541 |
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| PDB ID | Not Available |
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| ChEBI ID | Not Available |
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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 | - Zhao H, Zheng Y, Zhu L, Xiang L, Zhou Y, Li J, Fang J, Xu S, Xia W, Cai Z: Paraben Exposure Related To Purine Metabolism and Other Pathways Revealed by Mass Spectrometry-Based Metabolomics. Environ Sci Technol. 2020 Mar 17;54(6):3447-3454. doi: 10.1021/acs.est.9b07634. Epub 2020 Mar 6. [PubMed:32101413 ]
- (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
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