| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-09-11 14:32:21 UTC |
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| Update Date | 2021-09-26 23:09:30 UTC |
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| HMDB ID | HMDB0255013 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | N-(4-Methoxyphenyl)acetamide |
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| Description | methacetin, also known as aceto-p-anisidide or NSC 4687, belongs to the class of organic compounds known as acetanilides. These are organic compounds containing an acetamide group conjugated to a phenyl group. methacetin is a moderately basic compound (based on its pKa). This compound has been identified in human blood as reported by (PMID: 31557052 ). N-(4-methoxyphenyl)acetamide is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically N-(4-Methoxyphenyl)acetamide is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. |
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| Structure | InChI=1S/C9H11NO2/c1-7(11)10-8-3-5-9(12-2)6-4-8/h3-6H,1-2H3,(H,10,11) |
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| Synonyms | | Value | Source |
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| 4'-Methoxyacetanilide | ChEBI | | 4-(Acetylamino)anisole | ChEBI | | 4-Methoxyacetanilide | ChEBI | | Aceto-p-anisidide | ChEBI | | Acetyl-p-anisidine | ChEBI | | N-(4-Methoxyphenyl)acetamide | ChEBI | | N-(4-Methoxyphenyl)acetic acid amide | ChEBI | | N-Acetyl-p-anisidine | ChEBI | | N-Acetyl-p-methoxyaniline | ChEBI | | NSC 4687 | ChEBI | | p-Acetanisidine | ChEBI | | p-Methoxyacetanilide | ChEBI | | N-(4-Methoxyphenyl)acetate amide | Generator | | Methacetin, 14C-labeled | MeSH | | Methacetin | MeSH |
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| Chemical Formula | C9H11NO2 |
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| Average Molecular Weight | 165.192 |
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| Monoisotopic Molecular Weight | 165.078978598 |
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| IUPAC Name | N-(4-methoxyphenyl)ethanimidic acid |
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| Traditional Name | N-(4-methoxyphenyl)ethanimidic acid |
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| CAS Registry Number | Not Available |
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| SMILES | COC1=CC=C(C=C1)N=C(C)O |
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| InChI Identifier | InChI=1S/C9H11NO2/c1-7(11)10-8-3-5-9(12-2)6-4-8/h3-6H,1-2H3,(H,10,11) |
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| InChI Key | XVAIDCNLVLTVFM-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as acetanilides. These are organic compounds containing an acetamide group conjugated to a phenyl group. |
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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 | Anilides |
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| Direct Parent | Acetanilides |
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| Alternative Parents | |
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| Substituents | - Acetanilide
- N-acetylarylamine
- Methoxyaniline
- Phenoxy compound
- Anisole
- Phenol ether
- N-arylamide
- Methoxybenzene
- Alkyl aryl ether
- Acetamide
- Carboxamide group
- Secondary carboxylic acid amide
- Ether
- Carboxylic acid derivative
- Organic oxide
- Organooxygen compound
- Organonitrogen compound
- Organic nitrogen compound
- Carbonyl group
- Organopnictogen compound
- Organic oxygen compound
- Hydrocarbon derivative
- 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 | Not Available |
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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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| Predicted by Siyang on May 30, 2022 | 10.3276 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.77 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1408.0 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 324.2 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 125.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 188.2 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 84.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 345.5 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 | 399.3 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 103.4 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 805.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 324.1 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 | 871.7 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 220.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 298.4 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 368.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 253.0 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 | 60.1 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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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 - N-(4-Methoxyphenyl)acetamide GC-MS (Non-derivatized) - 70eV, Positive | splash10-00di-3900000000-2fc5678b5a62a15fda55 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - N-(4-Methoxyphenyl)acetamide GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - N-(4-Methoxyphenyl)acetamide GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-11-04 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - N-(4-Methoxyphenyl)acetamide GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-11-04 | 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 - N-(4-Methoxyphenyl)acetamide 10V, Positive-QTOF | splash10-014i-0900000000-c7710efa64e4277d0ac5 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-(4-Methoxyphenyl)acetamide 20V, Positive-QTOF | splash10-01b9-0900000000-85f0be10ea01fe60ca18 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-(4-Methoxyphenyl)acetamide 40V, Positive-QTOF | splash10-0l02-3900000000-03a419f60c30c136972c | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-(4-Methoxyphenyl)acetamide 10V, Negative-QTOF | splash10-03di-0900000000-e4551f4bfc03b346bbab | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-(4-Methoxyphenyl)acetamide 20V, Negative-QTOF | splash10-0229-0900000000-a74c7ca6ab654c10d605 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-(4-Methoxyphenyl)acetamide 40V, Negative-QTOF | splash10-0a4i-2900000000-6ff967b4a9a6590710ea | 2016-08-03 | Wishart Lab | View Spectrum |
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