| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2005-11-16 15:48:42 UTC |
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| Update Date | 2022-10-25 15:25:12 UTC |
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| HMDB ID | HMDB0001200 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | N'-Formylkynurenine |
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| Description | N'-Formylkynurenine belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. N'-Formylkynurenine is a very strong basic compound (based on its pKa). N'-Formylkynurenine exists in all eukaryotes, ranging from yeast to humans. Within humans, n'-formylkynurenine participates in a number of enzymatic reactions. In particular, n'-formylkynurenine can be biosynthesized from L-tryptophan through the action of the enzyme tryptophan 2,3-dioxygenase. In addition, n'-formylkynurenine can be converted into formylanthranilic acid and L-alanine; which is catalyzed by the enzyme kynureninase. The formation of N′-formylkynurenine is catalyzed by heme dioxygenases. In humans, n'-formylkynurenine is involved in tryptophan metabolism. It is a formylated derivative of kynurenine. N′-Formylkynurenine is an intermediate in the catabolism of tryptophan. |
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| Structure | NC(CC(=O)C1=CC=CC=C1NC=O)C(O)=O InChI=1S/C11H12N2O4/c12-8(11(16)17)5-10(15)7-3-1-2-4-9(7)13-6-14/h1-4,6,8H,5,12H2,(H,13,14)(H,16,17) |
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| Synonyms | | Value | Source |
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| 3-(2-Formamidobenzoyl)alanine | ChEBI | | Formylkynurenine | ChEBI | | 3-(N-Formylanthraniloyl)-alanine | HMDB | | alpha-Amino-2-(formylamino)-gamma-oxo-benzenebutanoate | HMDB | | alpha-Amino-2-(formylamino)-gamma-oxo-benzenebutanoic acid | HMDB | | N'-formyl-kynurenine | HMDB | | N-Formyl-D-kynurenine | HMDB | | N-Formyl-delta-kynurenine | HMDB | | N-Formyl-L-kynurenine | HMDB | | N'-formylkynurenine, (R)-isomer | HMDB | | N'-formylkynurenine, (S)-isomer | HMDB | | N-Formylkynurenine | HMDB |
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| Chemical Formula | C11H12N2O4 |
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| Average Molecular Weight | 236.224 |
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| Monoisotopic Molecular Weight | 236.079706882 |
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| IUPAC Name | 2-amino-4-(2-formamidophenyl)-4-oxobutanoic acid |
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| Traditional Name | N-formylkynurenine |
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| CAS Registry Number | 1022-31-7 |
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| SMILES | NC(CC(=O)C1=CC=CC=C1NC=O)C(O)=O |
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| InChI Identifier | InChI=1S/C11H12N2O4/c12-8(11(16)17)5-10(15)7-3-1-2-4-9(7)13-6-14/h1-4,6,8H,5,12H2,(H,13,14)(H,16,17) |
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| InChI Key | BYHJHXPTQMMKCA-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Carbonyl compounds |
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| Direct Parent | Alkyl-phenylketones |
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| Alternative Parents | |
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| Substituents | - Alkyl-phenylketone
- Butyrophenone
- Alpha-amino acid
- Alpha-amino acid or derivatives
- Anilide
- Benzoyl
- Aryl alkyl ketone
- N-arylamide
- Gamma-keto acid
- Monocyclic benzene moiety
- Beta-aminoketone
- Benzenoid
- Keto acid
- Vinylogous amide
- Secondary carboxylic acid amide
- Carboxamide group
- Amino acid
- Amino acid or derivatives
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Primary aliphatic amine
- Primary amine
- Organic nitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Amine
- Organopnictogen compound
- Organonitrogen compound
- 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 | Solid |
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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. | 2.08 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 10.346 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 7.55 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 268.8 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 648.1 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 262.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 72.9 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 164.0 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 48.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 244.9 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 | 307.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 676.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 655.1 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 128.4 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 | 873.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 200.2 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 202.6 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 460.8 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 354.5 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 | 349.7 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| N'-Formylkynurenine,1TMS,isomer #1 | C[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1NC=O | 2332.0 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,1TMS,isomer #2 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O | 2331.6 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,1TMS,isomer #3 | C[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(N)C(=O)O | 2232.2 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #1 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O[Si](C)(C)C | 2335.9 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #1 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O[Si](C)(C)C | 2286.8 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #1 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O[Si](C)(C)C | 3070.2 | Standard polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #2 | C[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C | 2206.6 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #2 | C[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C | 2323.5 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #2 | C[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C | 3034.0 | Standard polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #3 | C[Si](C)(C)N(C(CC(=O)C1=CC=CC=C1NC=O)C(=O)O)[Si](C)(C)C | 2468.0 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #3 | C[Si](C)(C)N(C(CC(=O)C1=CC=CC=C1NC=O)C(=O)O)[Si](C)(C)C | 2444.6 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #3 | C[Si](C)(C)N(C(CC(=O)C1=CC=CC=C1NC=O)C(=O)O)[Si](C)(C)C | 3284.6 | Standard polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #4 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)C(=O)O | 2243.9 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #4 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)C(=O)O | 2399.0 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TMS,isomer #4 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)C(=O)O | 2997.0 | Standard polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #1 | C[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1NC=O)N([Si](C)(C)C)[Si](C)(C)C | 2489.8 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #1 | C[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1NC=O)N([Si](C)(C)C)[Si](C)(C)C | 2402.0 | Standard non polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #1 | C[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1NC=O)N([Si](C)(C)C)[Si](C)(C)C | 2933.1 | Standard polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #2 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2236.9 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #2 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2352.2 | Standard non polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #2 | C[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)C(=O)O[Si](C)(C)C | 2706.9 | Standard polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #3 | C[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 2393.1 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #3 | C[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 2519.1 | Standard non polar | 33892256 | | N'-Formylkynurenine,3TMS,isomer #3 | C[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(C(=O)O)N([Si](C)(C)C)[Si](C)(C)C | 2870.6 | Standard polar | 33892256 | | N'-Formylkynurenine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2440.9 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2476.0 | Standard non polar | 33892256 | | N'-Formylkynurenine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C | 2656.6 | Standard polar | 33892256 | | N'-Formylkynurenine,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1NC=O | 2595.0 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O | 2590.8 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(N)C(=O)O | 2489.5 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O[Si](C)(C)C(C)(C)C | 2833.3 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O[Si](C)(C)C(C)(C)C | 2746.6 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1NC=O)C(=O)O[Si](C)(C)C(C)(C)C | 3171.3 | Standard polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C | 2670.2 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C | 2740.1 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)C(N)CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C | 3166.9 | Standard polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C(CC(=O)C1=CC=CC=C1NC=O)C(=O)O)[Si](C)(C)C(C)(C)C | 2968.5 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C(CC(=O)C1=CC=CC=C1NC=O)C(=O)O)[Si](C)(C)C(C)(C)C | 2841.9 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C(CC(=O)C1=CC=CC=C1NC=O)C(=O)O)[Si](C)(C)C(C)(C)C | 3293.1 | Standard polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)C(=O)O | 2721.6 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)C(=O)O | 2777.5 | Standard non polar | 33892256 | | N'-Formylkynurenine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)C(=O)O | 3151.7 | Standard polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1NC=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3185.0 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1NC=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3023.4 | Standard non polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1NC=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3132.9 | Standard polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2877.9 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2947.7 | Standard non polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 3017.5 | Standard polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3071.4 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3048.0 | Standard non polar | 33892256 | | N'-Formylkynurenine,3TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)N(C=O)C1=CC=CC=C1C(=O)CC(C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3102.5 | Standard polar | 33892256 | | N'-Formylkynurenine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3302.1 | Semi standard non polar | 33892256 | | N'-Formylkynurenine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 3214.4 | Standard non polar | 33892256 | | N'-Formylkynurenine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C(CC(=O)C1=CC=CC=C1N(C=O)[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2986.9 | Standard polar | 33892256 |
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| General References | - Wong PW, Forman P, Tabahoff B, Justice P: A defect in tryptophan metabolism. Pediatr Res. 1976 Aug;10(8):725-30. [PubMed:133325 ]
- Brunk E, Sahoo S, Zielinski DC, Altunkaya A, Drager A, Mih N, Gatto F, Nilsson A, Preciat Gonzalez GA, Aurich MK, Prlic A, Sastry A, Danielsdottir AD, Heinken A, Noronha A, Rose PW, Burley SK, Fleming RMT, Nielsen J, Thiele I, Palsson BO: Recon3D enables a three-dimensional view of gene variation in human metabolism. Nat Biotechnol. 2018 Mar;36(3):272-281. doi: 10.1038/nbt.4072. Epub 2018 Feb 19. [PubMed:29457794 ]
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