Exact Mass: 277.1498

Exact Mass Matches: 277.1498

Found 500 metabolites which its exact mass value is equals to given mass value 277.1498, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Amitriptyline

dimethyl(3-{tricyclo[9.4.0.0³,⁸]pentadeca-1(15),3,5,7,11,13-hexaen-2-ylidene}propyl)amine

C20H23N (277.183)

Amitriptyline hydrochloride is a dibenzocycloheptene-derivative tricyclic antidepressant (TCA). TCAs are structurally similar to phenothiazines. They contain a tricyclic ring system with an alkyl amine substituent on the central ring. In non-depressed individuals, amitriptyline does not affect mood or arousal, but may cause sedation. In depressed individuals, amitriptyline exerts a positive effect on mood. TCAs are potent inhibitors of serotonin and norepinephrine reuptake. Tertiary amine TCAs, such as amitriptyline, are more potent inhibitors of serotonin reuptake than secondary amine TCAs, such as nortriptyline. TCAs also down-regulate cerebral cortical β-adrenergic receptors and sensitize post-synaptic serotonergic receptors with chronic use. The antidepressant effects of TCAs are thought to be due to an overall increase in serotonergic neurotransmission. TCAs also block histamine-H₁ receptors, α₁-adrenergic receptors and muscarinic receptors, which accounts for their sedative, hypotensive and anticholinergic effects (e.g. blurred vision, dry mouth, constipation, urinary retention), respectively. See toxicity section below for a complete listing of side effects. Amitriptyline may be used to treat depression, chronic pain (unlabeled use), irritable bowel syndrome (unlabeled use), diabetic neuropathy (unlabeled use), post-traumatic stress disorder (unlabeled use), and for migraine prophylaxis (unlabeled use). N - Nervous system > N06 - Psychoanaleptics > N06A - Antidepressants > N06AA - Non-selective monoamine reuptake inhibitors D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors C78272 - Agent Affecting Nervous System > C265 - Antidepressant Agent > C94727 - Tricyclic Antidepressant D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D000928 - Antidepressive Agents D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D049990 - Membrane Transport Modulators

2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine

2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, perchlorate, (+-)-isomer

C20H23N (277.183)

2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, also known as EDDP, is a major inactive metabolite of the opioid methadone. Methadone is an opioid drug that is often used to treat addiction to other opioids, such as heroin, oxycodone or fentanyl. Methadone is metabolised in the liver and small intestine where it is converted to EDDP through N-demethylation and cyclization by CYP3A4 (PMID: 15501692, 27320437). EDDP and methadone are eliminated through the kidneys. As such it is common to monitor the urine of patients in a clinical and forensic settings. EDDP is formed through N-desmethylmethadone reacting with itself and cyclizing through condensation of the secondary amine with the carbonyl group (PMID: 27320437). EDDP belongs to the family of compounds known as Diphenylmethanes. These are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups. EDDP is only found in individuals who have taken or been given methadone. CONFIDENCE standard compound; EAWAG_UCHEM_ID 2825

Maprotiline

methyl(3-{tetracyclo[6.6.2.0²,⁷.0⁹,¹⁴]hexadeca-2,4,6,9,11,13-hexaen-1-yl}propyl)amine

C20H23N (277.183)

Maprotiline is a tetracyclic antidepressant with similar pharmacological properties to tricyclic antidepressants (TCAs). Similar to TCAs, maprotiline inhibits neuronal norepinephrine reuptake, possesses some anticholinergic activity, and does not affect monoamine oxidase activity. It differs from TCAs in that it does not appear to block serotonin reuptake. Maprotiline may be used to treat depressive affective disorders, including dysthymic disorder (depressive neurosis) and major depressive disorder. Maprotiline is effective at reducing symptoms of anxiety associated with depression. CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8225; ORIGINAL_PRECURSOR_SCAN_NO 8223 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8170; ORIGINAL_PRECURSOR_SCAN_NO 8168 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8212; ORIGINAL_PRECURSOR_SCAN_NO 8209 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8187; ORIGINAL_PRECURSOR_SCAN_NO 8185 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8233; ORIGINAL_PRECURSOR_SCAN_NO 8231 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8247; ORIGINAL_PRECURSOR_SCAN_NO 8245 N - Nervous system > N06 - Psychoanaleptics > N06A - Antidepressants > N06AA - Non-selective monoamine reuptake inhibitors D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors C78272 - Agent Affecting Nervous System > C265 - Antidepressant Agent > C94727 - Tricyclic Antidepressant D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D000928 - Antidepressive Agents D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents CONFIDENCE standard compound; EAWAG_UCHEM_ID 3317 CONFIDENCE standard compound; INTERNAL_ID 2221 D049990 - Membrane Transport Modulators

Queuine

2-Amino-5-((((1S,4S,5R)-4,5-dihydroxy-2-cyclopenten-1-yl)amino)methyl)-1,7-dihydro-4H-pyrrolo(2,3-D)pyrimidin-4-one

C12H15N5O3 (277.1175)

Queuine is a highly modified derivative of guanine found in the first position of the anticodon of the transfer RNAs for asp, asn, his and tyr. The original transcripts of these tRNAs contain guanine in this position. All organisms with the exception of yeast and mycoplasma contain queuine. Bacteria synthesize queuine but it cannot be synthesized by higher mammals. Significant amounts of free queuine are present in common plant and animal food products. (PMID 9016755) [HMDB] Queuine is a highly modified derivative of guanine found in the first position of the anticodon of the transfer RNAs for asp, asn, his and tyr. The original transcripts of these tRNAs contain guanine in this position. All organisms with the exception of yeast and mycoplasma contain queuine. Bacteria synthesize queuine but it cannot be synthesized by higher mammals. Significant amounts of free queuine are present in common plant and animal food products. (PMID 9016755).

S-(2-Methylpropionyl)-dihydrolipoamide-E

[Dihydrolipoyllysine-residue (2-methylpropanoyl)transferase]S-(2-methylpropanoyl)dihydrolipoyllysine

C12H23NO2S2 (277.117)

S-(2-Methylpropionyl)-dihydrolipoamide-E is an intermediate in valine, leucine and isoleucine degradation(KEGG ID C15977). It is the second to last step in the synthesis of branched chain fatty acid and is converted from 2-methyl-1-hydroxypropyl-ThPP via the enzyme 2-oxoisovalerate dehydrogenase [EC:1.2.4.4]. It is then converted to isobutyryl-CoA via the enzyme dihydrolipoyllysine-residue (2-methylpropanoyl)transferase [EC:2.3.1.168]. [HMDB] S-(2-Methylpropionyl)-dihydrolipoamide-E is an intermediate in valine, leucine and isoleucine degradation(KEGG ID C15977). It is the second to last step in the synthesis of branched chain fatty acid and is converted from 2-methyl-1-hydroxypropyl-ThPP via the enzyme 2-oxoisovalerate dehydrogenase [EC:1.2.4.4]. It is then converted to isobutyryl-CoA via the enzyme dihydrolipoyllysine-residue (2-methylpropanoyl)transferase [EC:2.3.1.168].

Promacyl

(3-methyl-5-propan-2-yl-phenyl) N-(2-oxopentyl)carbamate

C16H23NO3 (277.1678)

Deacetylbisacodyl

4-[(4-hydroxyphenyl)-pyridin-2-ylmethyl]phenol

C18H15NO2 (277.1103)

N-Acetylprocainamide

N-(4-{[2-(diethylamino)ethyl]carbamoyl}phenyl)ethanimidic acid

C15H23N3O2 (277.179)

N-Acetylprocainamide (NAPA or acecainide) is the N-acetylated metabolite of procainamide. It is a Class III antiarrhythmic agent, whereas procainamide is a Class Ia antiarrhythmic drug. It is only partially as active as procainamide; when checking levels both must be included in the final calculation. C78274 - Agent Affecting Cardiovascular System > C47793 - Antiarrhythmic Agent D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents C93038 - Cation Channel Blocker

Dehydroaporheine

11-methyl-3,5-dioxa-11-azapentacyclo[10.7.1.0²,⁶.0⁸,²⁰.0¹⁴,¹⁹]icosa-1(20),2(6),7,12,14,16,18-heptaene

C18H15NO2 (277.1103)

Dehydroaporheine is found in coffee and coffee products. Dehydroaporheine is an alkaloid from Nelumbo nucifera (East India lotus) and Papaver rhoeas (corn poppy). Alkaloid from Nelumbo nucifera (East India lotus) and Papaver rhoeas (corn poppy). Dehydroaporheine is found in coffee and coffee products and root vegetables.

Dinorcapsaicin

(4E)-N-[(4-Hydroxy-3-methoxyphenyl)methyl]-6-methylhept-4-enimidate

C16H23NO3 (277.1678)

Constituent of red pepper (Capsicum annuum). Dinorcapsaicin is found in many foods, some of which are italian sweet red pepper, red bell pepper, green bell pepper, and orange bell pepper. Dinorcapsaicin is found in herbs and spices. Dinorcapsaicin is a constituent of red pepper (Capsicum annuum)

Murrayacine

3,11-dihydro-3,3-dimethylpyrano[3,2-a]Carbazole-5-carboxaldehyde, 9ci

C18H15NO2 (277.1103)

Murrayacine is found in herbs and spices. Murrayacine is an alkaloid from the stem bark of Murraya koenigii (curryleaf tree). Alkaloid from the stem bark of Murraya koenigii (curryleaf tree). Murrayacine is found in herbs and spices.

Lysylmethionine

(2S)-2-[(2S)-2,6-diaminohexanamido]-4-(methylsulfanyl)butanoic acid

C11H23N3O3S (277.146)

Lysylmethionine is a dipeptide composed of lysine and methionine. It is an incomplete breakdown product of protein digestion or protein catabolism. Dipeptides are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond. Some dipeptides are known to have physiological or cell-signalling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis.

Methionyl-Lysine

6-Amino-2-{[2-amino-1-hydroxy-4-(methylsulphanyl)butylidene]amino}hexanoic acid

C11H23N3O3S (277.146)

Methionyl-Lysine is a dipeptide composed of methionine and lysine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.

Entecavir

2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6,9-dihydro-3H-purin-6-one

C12H15N5O3 (277.1175)

Entecavir is an oral antiviral drug used in the treatment of hepatitis B infection. It is marketed under the trade name Baraclude (BMS). Entecavir is a guanine analogue that inhibits all three steps in the viral replication process, and the manufacturer claims that it is more efficacious than previous agents used to treat hepatitis B (lamivudine and adefovir). It was approved by the U.S. Food and Drug Administration (FDA) in March 2005. J - Antiinfectives for systemic use > J05 - Antivirals for systemic use > J05A - Direct acting antivirals > J05AF - Nucleoside and nucleotide reverse transcriptase inhibitors C471 - Enzyme Inhibitor > C1589 - Reverse Transcriptase Inhibitor > C97452 - Nucleoside Reverse Transcriptase Inhibitor D000890 - Anti-Infective Agents > D000998 - Antiviral Agents C254 - Anti-Infective Agent > C281 - Antiviral Agent

Arginylcysteine

(2R)-2-{[(2S)-2-amino-5-carbamimidamido-1-hydroxypentylidene]amino}-3-sulphanylpropanoic acid

C9H19N5O3S (277.1209)

Arginylcysteine is a dipeptide composed of arginine and cysteine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis.

Cysteinyl-Arginine

2-[(2-Amino-1-hydroxy-3-sulphanylpropylidene)amino]-5-carbamimidamidopentanoic acid

C9H19N5O3S (277.1209)

Cysteinyl-Arginine is a dipeptide composed of cysteine and arginine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.

N-(1-Deoxy-1-fructosyl)proline

1-{[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}pyrrolidine-2-carboxylic acid

C11H19NO7 (277.1161)

Fructose aminoacids are naturally occurring compounds derived from D-fructose and L-aminoacids. They are amadori products resulting from sugar-aminoacid interactions in food products, especially cooked foods [CCD] N-(1-Deoxy-1-fructosyl)proline is classified as a Natural Food Constituent (code WA) in the DFC.

3'-Deaminofusarochromanone

5-amino-6-(4-hydroxybutanoyl)-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one