| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2013-06-18 18:42:46 UTC |
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| Update Date | 2019-07-23 07:14:50 UTC |
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| HMDB ID | HMDB0060678 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 3-Hydroxymonoethylglycinexylidide |
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| Description | 3-Hydroxymonoethylglycinexylidide, also known as 3-OH-megx, belongs to the class of organic compounds known as alpha amino acid amides. These are amide derivatives of alpha amino acids. Lidocaine is used topically to relieve itching, burning and pain from skin inflammations, injected as a dental anesthetic or as a local anesthetic for minor surgery. 3-Hydroxymonoethylglycinexylidide is a very strong basic compound (based on its pKa). 3-Hydroxymonoethylglycinexylidide is a metabolite of lidocaine. In humans, 3-hydroxymonoethylglycinexylidide is involved in lidocaine (local anaesthetic) metabolism pathway. Lidocaine, Xylocaine, or lignocaine is a common local anesthetic and antiarrhythmic drug. |
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| Structure | CCNCC(=O)NC1=C(C)C=CC(O)=C1C InChI=1S/C12H18N2O2/c1-4-13-7-11(16)14-12-8(2)5-6-10(15)9(12)3/h5-6,13,15H,4,7H2,1-3H3,(H,14,16) |
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| Synonyms | | Value | Source |
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| 3-OH-MEGX | HMDB | | 3-Hydroxy-monoethylglycinexylidide | HMDB | | N-(3-Hydroxy-2,6-dimethylphenyl)-2-ethylaminoacetamide | HMDB |
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| Chemical Formula | C12H18N2O2 |
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| Average Molecular Weight | 222.2835 |
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| Monoisotopic Molecular Weight | 222.13682783 |
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| IUPAC Name | 2-(ethylamino)-N-(3-hydroxy-2,6-dimethylphenyl)acetamide |
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| Traditional Name | 2-(ethylamino)-N-(3-hydroxy-2,6-dimethylphenyl)acetamide |
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| CAS Registry Number | Not Available |
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| SMILES | CCNCC(=O)NC1=C(C)C=CC(O)=C1C |
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| InChI Identifier | InChI=1S/C12H18N2O2/c1-4-13-7-11(16)14-12-8(2)5-6-10(15)9(12)3/h5-6,13,15H,4,7H2,1-3H3,(H,14,16) |
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| InChI Key | YITCMQBVWIHTTA-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as alpha amino acid amides. These are amide derivatives of alpha amino acids. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Carboxylic acids and derivatives |
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| Sub Class | Amino acids, peptides, and analogues |
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| Direct Parent | Alpha amino acid amides |
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| Alternative Parents | |
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| Substituents | - Alpha-amino acid amide
- Xylenol
- Anilide
- O-cresol
- P-cresol
- M-xylene
- Xylene
- N-arylamide
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Monocyclic benzene moiety
- Benzenoid
- Carboxamide group
- Secondary carboxylic acid amide
- Secondary aliphatic amine
- Secondary amine
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organooxygen compound
- Organonitrogen compound
- Organic nitrogen compound
- Carbonyl group
- Organic oxygen compound
- Amine
- 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 | |
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| Role | 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. | 2.29 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.2423 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 4.35 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 682.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 209.5 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 105.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 152.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 45.0 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 276.7 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 | 301.9 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 533.4 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 619.8 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 151.0 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 | 700.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 170.7 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 213.9 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 399.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 421.7 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 | 215.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 3-Hydroxymonoethylglycinexylidide,1TMS,isomer #1 | CCNCC(=O)NC1=C(C)C=CC(O[Si](C)(C)C)=C1C | 2073.8 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,1TMS,isomer #2 | CCN(CC(=O)NC1=C(C)C=CC(O)=C1C)[Si](C)(C)C | 2181.9 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,1TMS,isomer #3 | CCNCC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C | 1907.1 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #1 | CCN(CC(=O)NC1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C | 2198.4 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #1 | CCN(CC(=O)NC1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C | 2116.6 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #1 | CCN(CC(=O)NC1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C | 2580.6 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #2 | CCNCC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C | 1941.7 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #2 | CCNCC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C | 2014.6 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #2 | CCNCC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C | 2291.8 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #3 | CCN(CC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C)[Si](C)(C)C | 2014.5 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #3 | CCN(CC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C)[Si](C)(C)C | 2205.2 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TMS,isomer #3 | CCN(CC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C)[Si](C)(C)C | 2445.5 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,3TMS,isomer #1 | CCN(CC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C)[Si](C)(C)C | 2069.5 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,3TMS,isomer #1 | CCN(CC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C)[Si](C)(C)C | 2148.6 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,3TMS,isomer #1 | CCN(CC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C)=C1C)[Si](C)(C)C)[Si](C)(C)C | 2249.3 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,1TBDMS,isomer #1 | CCNCC(=O)NC1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C | 2348.7 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,1TBDMS,isomer #2 | CCN(CC(=O)NC1=C(C)C=CC(O)=C1C)[Si](C)(C)C(C)(C)C | 2409.4 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,1TBDMS,isomer #3 | CCNCC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C(C)(C)C | 2164.7 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #1 | CCN(CC(=O)NC1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C | 2673.9 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #1 | CCN(CC(=O)NC1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C | 2528.1 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #1 | CCN(CC(=O)NC1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C | 2751.4 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #2 | CCNCC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C | 2491.4 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #2 | CCNCC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C | 2418.9 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #2 | CCNCC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C | 2545.1 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #3 | CCN(CC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2538.2 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #3 | CCN(CC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2589.1 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,2TBDMS,isomer #3 | CCN(CC(=O)N(C1=C(C)C=CC(O)=C1C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2640.4 | Standard polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,3TBDMS,isomer #1 | CCN(CC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2819.8 | Semi standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,3TBDMS,isomer #1 | CCN(CC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2677.4 | Standard non polar | 33892256 | | 3-Hydroxymonoethylglycinexylidide,3TBDMS,isomer #1 | CCN(CC(=O)N(C1=C(C)C=CC(O[Si](C)(C)C(C)(C)C)=C1C)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2624.6 | 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 - 3-Hydroxymonoethylglycinexylidide GC-MS (Non-derivatized) - 70eV, Positive | splash10-0a4r-9600000000-5f020072a97c73daae81 | 2017-09-20 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Hydroxymonoethylglycinexylidide GC-MS (1 TMS) - 70eV, Positive | splash10-0a4i-9250000000-7456b076121b4fef0dd9 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Hydroxymonoethylglycinexylidide GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Hydroxymonoethylglycinexylidide 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 - 3-Hydroxymonoethylglycinexylidide 10V, Positive-QTOF | splash10-0a4i-9020000000-2b9c10fde02d305c23e7 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 20V, Positive-QTOF | splash10-0a4i-9100000000-6cbb699e2f4e53b0bd3d | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 40V, Positive-QTOF | splash10-056r-9000000000-fde7f5554300c141691e | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 10V, Negative-QTOF | splash10-00di-0290000000-be80b1566ce55291a2bc | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 20V, Negative-QTOF | splash10-00du-3950000000-727d3f372178fd4f618f | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 40V, Negative-QTOF | splash10-052f-8900000000-ede2452452b422be3133 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 10V, Positive-QTOF | splash10-00di-3090000000-b873de0ee455c3fd9eb5 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 20V, Positive-QTOF | splash10-0a6r-9410000000-81b1a289e4c0601a9cf0 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 40V, Positive-QTOF | splash10-0a4l-9400000000-7c6332a66389c422a345 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 10V, Negative-QTOF | splash10-00dr-0690000000-c7a1b5009806a7f5edd9 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 20V, Negative-QTOF | splash10-0079-2920000000-eeeb9f1b532ae94c10d0 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Hydroxymonoethylglycinexylidide 40V, Negative-QTOF | splash10-0076-8900000000-870ceeac1545371316fb | 2021-10-12 | Wishart Lab | View Spectrum |
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