Exact Mass: 321.122569

Exact Mass Matches: 321.122569

Found 86 metabolites which its exact mass value is equals to given mass value 321.122569, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

Dehydrohistidyltryptophyldiketopiperazine

C17H15N5O2 (321.122569)

Niazirinin

(2S,3R,4S,5R,6S)-6-[4-(cyanomethyl)phenoxy]-4,5-dihydroxy-2-methyloxan-3-yl acetate

C16H19NO6 (321.1212314)

Niazirinin is a nitrile glycoside that has been isolated from the leaves of Moringa oleifera (horseradish tree). Niazirin is found in brassicas. Constituent of the leaves of the horseradish tree (Moringa oleifera, Moringaceae). Niazirinin is found in brassicas.

(2R,3R,4E)-2,3-Dihydroxy-5-(methylsulfanyl)pent-4-enoylcarnitine

3-{[2,3-dihydroxy-5-(methylsulfanyl)pent-4-enoyl]oxy}-4-(trimethylazaniumyl)butanoate

C13H23NO6S (321.12460180000005)

(2R,3R,4E)-2,3-dihydroxy-5-(methylsulfanyl)pent-4-enoylcarnitine is an acylcarnitine. More specifically, it is an (2R,3R,4E)-2,3-dihydroxy-5-(methylsulfanyl)pent-4-enoic acid ester of carnitine. Acylcarnitines were first discovered more than 70 year ago (PMID: 13825279). It is believed that there are more than 1000 types of acylcarnitines in the human body. The general role of acylcarnitines is to transport acyl-groups (organic acids and fatty acids) from the cytoplasm into the mitochondria so that they can be broken down to produce energy. This process is known as beta-oxidation. According to a recent review [Dambrova et al. 2021, Physiological Reviews], acylcarnitines (ACs) can be classified into 9 different categories depending on the type and size of their acyl-group: 1) short-chain ACs; 2) medium-chain ACs; 3) long-chain ACs; 4) very long-chain ACs; 5) hydroxy ACs; 6) branched chain ACs; 7) unsaturated ACs; 8) dicarboxylic ACs and 9) miscellaneous ACs. Short-chain ACs have acyl-groups with two to five carbons (C2-C5), medium-chain ACs have acyl-groups with six to thirteen carbons (C6-C13), long-chain ACs have acyl-groups with fourteen to twenty once carbons (C14-C21) and very long-chain ACs have acyl groups with more than 22 carbons. (2R,3R,4E)-2,3-dihydroxy-5-(methylsulfanyl)pent-4-enoylcarnitine is therefore classified as a medium chain AC. As a medium-chain acylcarnitine (2R,3R,4E)-2,3-dihydroxy-5-(methylsulfanyl)pent-4-enoylcarnitine is somewhat less abundant than short-chain acylcarnitines. These are formed either through esterification with L-carnitine or through the peroxisomal metabolism of longer chain acylcarnitines (PMID: 30540494). Many medium-chain acylcarnitines can serve as useful markers for inherited disorders of fatty acid metabolism. Carnitine octanoyltransferase (CrOT, EC:2.3.1.137) is responsible for the synthesis of all medium-chain (MCAC, C5-C12) and medium-length branched-chain acylcarnitines in peroxisomes (PMID: 10486279). The study of acylcarnitines is an active area of research and it is likely that many novel acylcarnitines will be discovered in the coming years. It is also likely that many novel roles in health and disease will be uncovered. An excellent review of the current state of knowledge for acylcarnitines is available at [Dambrova et al. 2021, Physiological Reviews].

5-Oxozaleplon

N-(3-{3-cyano-5-oxo-4H,5H-pyrazolo[1,5-a]pyrimidin-7-yl}phenyl)-N-ethylacetamide

C17H15N5O2 (321.122569)

Carboquone

{2-[2,5-bis(aziridin-1-yl)-4-methyl-3,6-dioxocyclohexa-1,4-dien-1-yl]-2-methoxyethoxy}carboximidic acid

C15H19N3O5 (321.1324644)

L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents > L01A - Alkylating agents > L01AC - Ethylene imines C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D009676 - Noxae > D000477 - Alkylating Agents D000970 - Antineoplastic Agents

indole-3-acetyl-phenylalanine

N-(1-Carboxy-2-phenylethyl)-2-(1H-indol-3-yl)ethanecarboximidic acid

C11H19N3O8 (321.1172094)

Asp Ser Thr

C11H19N3O8 (321.1172094)

Niazirinin

6-[4-(cyanomethyl)phenoxy]-4,5-dihydroxy-2-methyloxan-3-yl acetate

C16H19NO6 (321.1212314)

R-(-)-Apomorphine

C17H20ClNO3 (321.1131640000001)

Norcodeine Hydrochloride

C17H20ClNO3 (321.1131640000001)

N-BOC-BETA-ALANINE-BETA-4-METHOXYPHENYL-N-CARBOXYANHYDRIDE

C16H19NO6 (321.1212314)

DIETHYL 6-ACETYL-5,6-DIHYDROPYRIDO[3,4-B]PYRAZINE-7,7(8H)-DICARBOXYLATE

C15H19N3O5 (321.1324644)

hydromorphone hydrochloride

C17H20ClNO3 (321.1131640000001)

D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D009294 - Narcotics D002492 - Central Nervous System Depressants > D009294 - Narcotics > D053610 - Opiate Alkaloids D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents C78272 - Agent Affecting Nervous System > C67413 - Opioid Receptor Agonist D002491 - Central Nervous System Agents > D000700 - Analgesics

(1R,5R,6R,7R,9S,11S,12S,13S,14S)-3-amino-14-(hydroxymethyl)-8,10-dioxa-2,4-diazatetracyclo[7.3.1.17,11.01,6]tetradecane-5,9,12,13,14-pentol

C11H19N3O8 (321.1172094)

(4R,4aR,7aR,12bS)-9-hydroxy-3-methyl-1,2,4,4a,5,6,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-7-one;hydron;chloride

C17H20ClNO3 (321.1131640000001)