| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-10-01 18:04:09 UTC |
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| Update Date | 2022-09-22 18:35:14 UTC |
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| HMDB ID | HMDB0304943 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | 3-Methyloxindole |
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| Description | 3-methyloxindole belongs to the class of organic compounds known as indolines. Indolines are compounds containing an indole moiety, which consists of pyrrolidine ring fused to benzene to form 2,3-dihydroindole. 3-methyloxindole is an extremely weak basic (essentially neutral) compound (based on its pKa). |
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| Structure | InChI=1S/C9H9NO/c1-6-7-4-2-3-5-8(7)10-9(6)11/h2-6H,1H3,(H,10,11) |
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| Synonyms | | Value | Source |
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| 1,3-Dihydro-3-methyl-2H-indol-2-one | ChEBI | | 3-Methyl-1,3-dihydroindol-2-one | ChEBI | | 3-Methyl-2-oxindole | MeSH |
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| Chemical Formula | C9H9NO |
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| Average Molecular Weight | 147.177 |
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| Monoisotopic Molecular Weight | 147.068413914 |
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| IUPAC Name | 3-methyl-2,3-dihydro-1H-indol-2-one |
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| Traditional Name | 3-methyloxindole |
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| CAS Registry Number | Not Available |
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| SMILES | CC1C(=O)NC2=CC=CC=C12 |
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| InChI Identifier | InChI=1S/C9H9NO/c1-6-7-4-2-3-5-8(7)10-9(6)11/h2-6H,1H3,(H,10,11) |
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| InChI Key | BBZCPUCZKLTAJQ-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as indolines. Indolines are compounds containing an indole moiety, which consists of pyrrolidine ring fused to benzene to form 2,3-dihydroindole. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Indoles and derivatives |
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| Sub Class | Indolines |
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| Direct Parent | Indolines |
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| Alternative Parents | |
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| Substituents | - Dihydroindole
- Benzenoid
- Carboxamide group
- Lactam
- Secondary carboxylic acid amide
- Azacycle
- Carboxylic acid derivative
- Organic oxygen compound
- Organooxygen compound
- Organonitrogen compound
- Carbonyl group
- Organic nitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic 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 | Not Available |
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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 | 10.7875 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.54 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1514.9 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 351.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 116.1 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 205.6 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 64.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 356.0 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 | 585.3 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 109.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 837.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 295.2 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 | 1106.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 282.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 303.8 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 388.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 232.2 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 | 103.4 seconds | 40023050 |
Predicted Kovats Retention IndicesDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 3-Methyloxindole,1TMS,isomer #1 | CC1C(=O)N([Si](C)(C)C)C2=CC=CC=C21 | 1498.9 | Semi standard non polar | 33892256 | | 3-Methyloxindole,1TMS,isomer #1 | CC1C(=O)N([Si](C)(C)C)C2=CC=CC=C21 | 1552.9 | Standard non polar | 33892256 | | 3-Methyloxindole,1TMS,isomer #1 | CC1C(=O)N([Si](C)(C)C)C2=CC=CC=C21 | 1838.1 | Standard polar | 33892256 | | 3-Methyloxindole,1TBDMS,isomer #1 | CC1C(=O)N([Si](C)(C)C(C)(C)C)C2=CC=CC=C21 | 1740.0 | Semi standard non polar | 33892256 | | 3-Methyloxindole,1TBDMS,isomer #1 | CC1C(=O)N([Si](C)(C)C(C)(C)C)C2=CC=CC=C21 | 1790.4 | Standard non polar | 33892256 | | 3-Methyloxindole,1TBDMS,isomer #1 | CC1C(=O)N([Si](C)(C)C(C)(C)C)C2=CC=CC=C21 | 1979.6 | Standard polar | 33892256 |
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| 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-Methyloxindole 10V, Positive-QTOF | splash10-0002-0900000000-7b55d189e95922af9f37 | 2021-10-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Methyloxindole 20V, Positive-QTOF | splash10-0002-0900000000-cea9330d77eab03f3394 | 2021-10-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Methyloxindole 40V, Positive-QTOF | splash10-0ufr-9700000000-f73f909d72f005c95b1e | 2021-10-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Methyloxindole 10V, Negative-QTOF | splash10-0002-0900000000-46c7adeffe51c18a37d6 | 2021-10-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Methyloxindole 20V, Negative-QTOF | splash10-0002-3900000000-ca8edd5d21083ea3a52e | 2021-10-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Methyloxindole 40V, Negative-QTOF | splash10-0006-9000000000-f3f899006742cd993cf2 | 2021-10-22 | Wishart Lab | View Spectrum |
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