Exact Mass: 264.1033
Exact Mass Matches: 264.1033
Found 261 metabolites which its exact mass value is equals to given mass value 264.1033
,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
Acetyl-N-formyl-5-methoxykynurenamine
Acetyl-N-formyl-5-methoxykynurenamine (AFMK) results from the oxidative cleavage of the pyrrole ring during melatonin oxidation by myeloperoxidase (MPO), a superoxide anion (O)-dependent reaction. AFMK is also expected to be formed from oxidation catalyzed by the unspecific enzyme indoleamine-2,3-dioxygenase (IDO), found in a variety of cell types including monocyte/macrophage lineages. MPO- and IDO-catalyzed melatonin oxidation has the requirement of O in common, a species formed in large amounts in inflammatory conditions. The non-enzymatic formation of AFMK can also be expected by its direct reaction with highly reactive oxygen species, such as hydroxyl radical and singlet oxygen. Thus, we assume that AFMK is a product formed in a route of melatonin metabolism, especially active in inflammation. As AFMK is biologically more active on leukocytes than melatonin, the metabolizing of melatonin to AFMK at inflammatory sites possibly plays a role in immunomodulation. AFMK is found in the CSF of patients with meningitis, and in some samples at a remarkably high concentration, with AFMK found in some patients exceeding the concentration of melatonin normally found in serum. (PMID: 16150112) [HMDB] Acetyl-N-formyl-5-methoxykynurenamine (AFMK) results from the oxidative cleavage of the pyrrole ring during melatonin oxidation by myeloperoxidase (MPO), a superoxide anion (O)-dependent reaction. AFMK is also expected to be formed from oxidation catalyzed by the unspecific enzyme indoleamine-2,3-dioxygenase (IDO), found in a variety of cell types including monocyte/macrophage lineages. MPO- and IDO-catalyzed melatonin oxidation has the requirement of O in common, a species formed in large amounts in inflammatory conditions. The non-enzymatic formation of AFMK can also be expected by its direct reaction with highly reactive oxygen species, such as hydroxyl radical and singlet oxygen. Thus, we assume that AFMK is a product formed in a route of melatonin metabolism, especially active in inflammation. As AFMK is biologically more active on leukocytes than melatonin, the metabolizing of melatonin to AFMK at inflammatory sites possibly plays a role in immunomodulation. AFMK is found in the CSF of patients with meningitis, and in some samples at a remarkably high concentration. AFMK was also found in some patients to exceed the concentration of melatonin normally found in serum (PMID: 16150112).
Phenylacetylglutamine
Phenylacetylglutamine is a product formed from the conjugation of phenylacetate and glutamine. Technically, it is the amino acid acetylation product of phenylacetate (or phenylbutyrate after beta-oxidation). Phenylacetylglutamine is a normal constituent of human urine, but other mammals such as the dog, cat, rat, monkey, sheep, and horse do not excrete this compound. Phenylacetyl-CoA and L-glutamine react to form phenylacetylglutamine and coenzyme A. The enzyme (glutamine N-acetyl transferase) that catalyzes this reaction has been purified from human liver mitochondria and shown to be a polypeptide species distinct from glycine-N-acyltransferase. Phenylacetylglutamine is a major nitrogenous metabolite that accumulates in uremia (PMID: 2791363, 8972626). It has been shown that over 50\\\% of urine phenylacetylglutamine may be derived from kidney conjugation of free plasma phenylacetic acid and/or from the kidneys preferential filtration of conjugated phenylacetic acid (PMID: 6420430). Phenylacetylglutamine is a microbial metabolite found in Christensenellaceae, Lachnospiraceae and Ruminococcaceae (PMID: 26241311). Phenylacetylglutamine is a product formed by the conjugation of phenylacetate and glutamine. Technically it is the amino acid acetylation product of phenylacetate (or phenylbutyrate after beta-oxidation). Phenylacetylglutamine is a normal constituent of human urine, but other mammals including the dog, cat, rat, monkey, sheep and horse do not excrete this compound. Phenylacetyl CoA and glutamine react to form phenylacetyl glutamine and Coenzyme A. The enzyme (Glutamine N-acetyl transferase) that catalyzes this reaction has been purified from human liver mitochondria and shown to be a distinct polypeptide species from glycine-N-acyltransferase. Phenylacetylglutamine is a major nitrogenous metabolite that accumulates in uremia. (PMID: 2791363; PMID: 8972626). It has been shown that over 50\\\% of urine phenylacetylglutamine may be derived from kidney conjugation of free plasma phenylacetic acid and/or from the kidneys preferential filtration of conjugated phenylacetic acid (PMID: 6420430) Phenylacetylglutamine is a colonic microbial metabolite from amino acid fermentation.
1'-Acetoxyeugenol acetate
1-Acetoxyeugenol acetate is found in herbs and spices. 1-Acetoxyeugenol acetate is a constituent of Alpinia galanga (greater galangal). Constituent of Alpinia galanga (greater galangal). 1-Acetoxyeugenol acetate is found in herbs and spices.
N(2)-phenylacetyl-L-glutaminate
N(2)-phenylacetyl-L-glutaminate is considered to be practically insoluble (in water) and acidic
di-Hydroxymelatonin
di-Hydroxymelatonin is a metabolite of melatonin. Melatonin Listen/ˌmɛləˈtoʊnɪn/, also known chemically as N-acetyl-5-methoxytryptamine, is a naturally occurring compound found in animals, plants, and microbes. In animals, circulating levels of the hormone melatonin vary in a daily cycle, thereby allowing the entrainment of the circadian rhythms of several biological functions. (Wikipedia)
3-(3-Hydroxy-4-methoxynaphthalen-1-yl)oxypropane-1,2-diol
Benzamide, N-(3R)-1-azabicyclo[2.2.2]oct-3-yl-4-chloro-
Peucedanol
(+)-Peusedanol is a natural product found in Prangos tschimganica, Prangos uloptera, and other organisms with data available. 2H-1-Benzopyran-2-one, 6-(2,3-dihydroxy-3-methylbutyl)-7-hydroxy- is a natural product found in Ficus glumosa with data available. (+)-Peusedanol is a coumarin isolated from Peucedanumjaponicum[1].
2H-1-Benzopyran-2-one, 6-(2,3-dihydroxy-3-methylbutyl)-7-hydroxy-
6-Acetyl-5-hydroxy-2-(1-hydroxy-2-propenyl)-3-methoxy-2,3-dihydrobenzofuran
(2E)-3-(4-O-acetyl-3-methoxyphenyl)prop-2-en-1-yl acetate|1-acetoxy-4-(3-acetoxy-trans-propenyl)-2-methoxy-benzene|1-Acetoxy-4-(3-acetoxy-trans-propenyl)-2-methoxy-benzol|trans-coniferyl alcohol diacetate
methyl (Z)-6-(2,5-dihydroxyphenyl)-4-methyl-6-oxo-4-hexenoate|orirubenone F
5-Acetyl-2-(1-hydroxy-1-methylethyl)-4-methoxybenzofuran-6-ol
methyl (S)-2-(6-acetyl-5-hydroxy-2,3-dihydrobenzofuran-2-yl)propanoate|Methyl-2-(6-acetyl-5-hydroxy-2,3-dihydrobenzofuran-2-yl)propanoate
3-Hydroxy-7-<4-hydroxy-isopentyloxy>-coumarin|7-O-(4-Hydroxy-3-methylbutyl)- 3,7-Dihydroxy-2H-1-benzopyran-2-one
7-(3-Methyl-2,3-dihydroxybutyloxy)-2H-1-benzopyran-2-one
8-hydroxy-7-(4-hydroxy-2-methyl-butoxy)-chromen-2-one|Armin
1-(5-methoxy-4-oxo-prenyl)-resacetophenone|1-<5-methoxy-4-oxo-prenyl>-resacetophenone
(E,E)-5-(4-methoxy-3-methyl-2-oxo-2H-pyran-6-yl)-3-methylhexa-2,4-dienoic acid|infectopyrone
7-hydroxy-8-(4-hydroxy-3-methylbutoxy)-2H-chromen-2-one|armenin
7-hydroxy-8-(2-hydroxy-2-isopropoxy-ethyl)-chromen-2-one|Calcicolin
(5R*, 6R*, 7R*, 8R*, 3Z)-6, 7-dihydroxy-5-methoxy-8-phenyl-5,6,7,8-tetrahydrooxacin-2-one|(5R*,6R*,7R*,8R*,3Z)-6,7-dihydroxy-5-methoxy-8-phenyl-5,6,7,8-tetrahydrooxacin-2-one|gonioheptenolactone
methyl 7-hydroxy-5-methoxy-2,2-dimethyl-2H-chromene-8-carboxylate
3-hydroxybenzyl 2-(4-oxo-5,6-dihydro-2H-pyran-3-yl)acetate
6,7-Dimethoxybenzofuran-5-propionic acid methyl ester
5-hydroxymethyl-7-methoxy-2,2-dimethyl-2H-1-chromene-6-carboxylic acid|5-Methanol-7-methoxy-2,2-dimethyl-2H-1-chromene-6-carboxylic acid
4,7,8-trimethoxy-3,5-dimethylchromen-2-one
3-(2-hydroxypropyl)-6,8-dimethoxyisochromen-1-one
Phenylacetylglutamine
Phenylacetylglutamine is a colonic microbial metabolite from amino acid fermentation.
4,7,8-trimethoxy-3,5-dimethylchromen-2-one [IIN-based: Match]
3-(2-hydroxypropyl)-6,8-dimethoxyisochromen-1-one [IIN-based: Match]
3-(2-hydroxypropyl)-6,8-dimethoxyisochromen-1-one [IIN-based on: CCMSLIB00000846888]
4,7,8-trimethoxy-3,5-dimethylchromen-2-one [IIN-based on: CCMSLIB00000845769]
Butanedioic acid,2-oxo-3-phenyl-, 1,4-diethyl ester
2-PYRIDIN-3-YL-QUINOLINE-4-CARBOXYLIC ACID HYDRAZIDE
4-CHLORO-TRANS-BETA-STYRYLBORONIC ACID PINACOL ESTER
tert-butyl 3-(4-methoxyphenyl)-2,3-dioxopropanoate
Ethyl 2,3-dihydro-5,6-dimethoxy-1-oxo-1H-indene-2-carboxylic ester
(2S,4S)-1-CBZ-4-AMINO PYRROLIDINE-2-CARBOXYLIC ACID
4-(pyridin-2-ylmethylamino)quinazoline-6-carbaldehyde
4-(pyridin-3-ylmethylamino)quinazoline-6-carbaldehyde
2,4,6-triethyl-2,4,6-trimethyl-1,3,5,2,4,6-trioxatrisilinane
(S)-1-(Benzyloxycarbonyl)hexahydropyridazine-3-carboxylic acid
ETHYL 1-(TERT-BUTYL)-5-(TRIFLUOROMETHYL)-1H-PYRAZOLE-4-CARBOXYLATE
3-(PIPERIDIN-4-YL)ISOQUINOLIN-1(2H)-ONE HYDROCHLORIDE
METHYL 2,3-ANHYDRO-4,6-O-BENZYLIDENE-α-D-ALLOPYRANOSIDE
Propanedioic acid,2-(2-phenylhydrazinylidene)-, 1,3-diethyl ester
4-Phenylmethoxycarbonyl-2-piperazinecarboxylic acid hydrochloride
1-((Benzyloxy)carbonyl)hexahydropyridazine-3-carboxylic acid
Methyl 2-hydroxy-5,6-dimethoxy-3,4-dihydro-1-naphthalenecarboxyla te
(2R,4R)-4-amino-1-benzylpyrrolidine-2,4-dicarboxylic acid
2-PYRIDIN-2-YL-QUINOLINE-4-CARBOXYLIC ACID HYDRAZIDE
2-(4-FLUOROPHENYL)-4,5-DIHYDRO-2H-BENZO[G]INDAZOLE
1-Naphthaleneacetamide,N-(2-aminoethyl)-, hydrochloride (1:1)
2-(4-HYDROXY-BENZYLIDENE)-MALONIC ACID DIETHYL ESTER
2-(1-(4-CHLOROPHENYL)VINYL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
(R)-4-(Benzyloxycarbonyl)piperazine-2-carboxylic acid
diethyl 2-[(pyridin-2-ylamino)methylidene]propanedioate
1H-INDOLE-1-CARBOXYLIC ACID,2,3-DIHYDRO-6-NITRO-,1,1-DIMETHYLETHYL ESTER
a-D-Mannopyranoside, methyl2,3-anhydro-4,6-O-(phenylmethylene)-
(E)Ethyl 4-(3,4-dimethoxyphenyl)-4-oxo-2-butenoate
2-PYRIDIN-4-YL-QUINOLINE-4-CARBOXYLIC ACID HYDRAZIDE
1-(4-FLUOROPHENYL)-3-(4-HYDROXYPHENYL)-2-PROPEN-1-ONE
(S)-1-((BENZYLOXY)CARBONYL)PIPERAZINE-2-CARBOXYLIC ACID
Benzamide, N-(3R)-1-azabicyclo[2.2.2]oct-3-yl-4-chloro-
N-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-morpholinecarboxamide
2,6-Diamino-8-propylsulfanylmethyl-3H-quinazoline-4-one
1-Deoxy-1-acetylamino-beta-D-gluco-2-heptulopyranosonamide
4-(Acetyloxy)-alpha-ethenyl-3-methoxybenzenemethanol acetate
4-(tert-Butoxycarbonyl-hydrazonomethyl)-benzoic acid
1-Acetoxyeugenol acetate
An acetate ester that is eugenol acetate substituted by an acetoxy group at position 1.
N(2)-phenylacetyl-L-glutamine
An a N(2)-phenylacetylglutamine having L-configuration.
4,5,8-trihydroxy-6-methyl-7-(2-oxopropyl)-3,4-dihydro-2h-naphthalen-1-one
4-hydroxy-5-methoxy-1,3,10-trimethyl-8,12-dioxatricyclo[7.2.1.0²,⁷]dodeca-2(7),3,5-trien-11-one
8-[(2s)-2,3-dihydroxy-3-methylbutyl]-7-hydroxychromen-2-one
(2r)-2-{2-[(2e)-3-methoxy-5-oxofuran-2-ylidene]propyl}-2,4-dimethylfuran-3-one
6-hydroxy-3-[(2s)-2-hydroxypropyl]-8-methoxy-7-methylisochromen-1-one
1-[(2s)-4,7-dihydroxy-6-methoxy-2-(prop-1-en-2-yl)-2,3-dihydro-1-benzofuran-5-yl]ethanone
4-(3-acetyl-2,6-dihydroxyphenyl)-2-(methoxymethyl)but-2-enal
(11z)-11-ethylidene-6-methoxy-7,9,13-trioxatetracyclo[6.5.1.0¹,¹⁰.0⁴,¹⁴]tetradec-2-en-12-one
1-[(2r)-7-hydroxy-2-(hydroxymethyl)-8-methoxy-2-methylchromen-6-yl]ethanone
1-[5-hydroxy-2-(3-hydroxyprop-1-en-2-yl)-3-methoxy-2,3-dihydro-1-benzofuran-6-yl]ethanone
6-[(2S)-2,3-dihydroxy-3-methyl-butyl]-7-hydroxy-coumarin
{"Ingredient_id": "HBIN012013","Ingredient_name": "6-[(2S)-2,3-dihydroxy-3-methyl-butyl]-7-hydroxy-coumarin","Alias": "6-[(2S)-2,3-dihydroxy-3-methylbutyl]-7-hydroxychromen-2-one; 6-[(2S)-2,3-dihydroxy-3-methylbutyl]-7-hydroxy-2-chromenone; 6-[(2S)-2,3-dihydroxy-3-methyl-butyl]-7-hydroxy-chromen-2-one","Ingredient_formula": "C14H16O5","Ingredient_Smile": "NA","Ingredient_weight": "264.27","OB_score": "38.1320365","CAS_id": "20126-72-1","SymMap_id": "SMIT13796","TCMID_id": "NA","TCMSP_id": "MOL013099","TCM_ID_id": "NA","PubChem_id": "NA","DrugBank_id": "NA"}
6-acetyl-5-hydroxy-2-(1-hydroxy-2-propenyl)-3-methoxy-2,3-dih ydrobenzofuran
{"Ingredient_id": "HBIN012163","Ingredient_name": "6-acetyl-5-hydroxy-2-(1-hydroxy-2-propenyl)-3-methoxy-2,3-dih ydrobenzofuran","Alias": "NA","Ingredient_formula": "C14H16O5","Ingredient_Smile": "Not Available","Ingredient_weight": "NA","OB_score": "NA","CAS_id": "NA","SymMap_id": "NA","TCMID_id": "417","TCMSP_id": "NA","TCM_ID_id": "NA","PubChem_id": "NA","DrugBank_id": "NA"}