Exact Mass: 233.1223

Exact Mass Matches: 233.1223

Found 500 metabolites which its exact mass value is equals to given mass value 233.1223, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Methylphenidate

Mallinckrodt brand OF methylphenidate hydrochloride

C14H19NO2 (233.1416)

Methylphenidate is only found in individuals that have used or taken this drug. It is a central nervous system stimulant used most commonly in the treatment of attention-deficit disorders in children and for narcolepsy. Its mechanisms appear to be similar to those of dextroamphetamine. [PubChem]Methylphenidate blocks dopamine uptake in central adrenergic neurons by blocking dopamine transport or carrier proteins. Methylphenidate acts at the brain stem arousal system and the cerebral cortex and causes increased sympathomimetic activity in the central nervous system. Alteration of serotonergic pathways via changes in dopamine transport may result. N - Nervous system > N06 - Psychoanaleptics > N06B - Psychostimulants, agents used for adhd and nootropics > N06BA - Centrally acting sympathomimetics D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018765 - Dopamine Uptake Inhibitors D002491 - Central Nervous System Agents > D000697 - Central Nervous System Stimulants C78272 - Agent Affecting Nervous System > C47795 - CNS Stimulant D018377 - Neurotransmitter Agents > D015259 - Dopamine Agents D049990 - Membrane Transport Modulators

L-Name

N5-[imino(nitroamino)methyl]-L-ornithine, methyl ester

C7H15N5O4 (233.1124)

D004791 - Enzyme Inhibitors

Lomustine

1-(2-Chloroethyl)-3-cyclohexyl-1-nitrosourea

C9H16ClN3O2 (233.0931)

Lomustine is only found in individuals that have used or taken this drug. It is an alkylating agent of value against both hematologic malignancies and solid tumors. [PubChem]Lomustine is a highly lipophilic nitrosourea compound which undergoes hydrolysis in vivo to form reactive metabolites. These metabolites cause alkylation and cross-linking of DNA (at the O6 position of guanine-containing bases) and RNA, thus inducing cytotoxicity. Other biologic effects include inhibition of DNA synthesis and some cell cycle phase specificity. Nitrosureas generally lack cross-resistance with other alkylating agents. As lomustine is a nitrosurea, it may also inhibit several key processes such as carbamoylation and modification of cellular proteins. L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents > L01A - Alkylating agents > L01AD - Nitrosoureas C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D009676 - Noxae > D000477 - Alkylating Agents D000970 - Antineoplastic Agents

hexahomomethionine

(2R)-2-amino-10-methylsulfanyldecanoic acid

C11H23NO2S (233.1449)

A sulfur-containing amino acid consisting of 2-aminodecanoic acid having a methylthio substituent at the 10-position.

Hirsutin

Octane, 1-isothiocyanato-8-(methylsulfinyl)-

C10H19NOS2 (233.0908)

8-(methylsulfinyl)octyl isothiocyanate is a member of the class of isothiocyanates that is octyl isothiocyanate in which one of the methyl hydrogens at position 8 has been replaced by a methylsulfinyl group. It has a role as a plant metabolite and an allelochemical. It is an isothiocyanate and a sulfoxide. It derives from a hydride of an octane. 8-Methylsulfinyloctyl isothiocyanate is a natural product found in Arabidopsis thaliana, Rorippa indica, and Rorippa sylvestris with data available. Hirsutin inhibits germination of lettuce seeds and affects the growth of the roots of lettuce seedling Inhibits germination of lettuce seeds and affects the growth of the roots of lettuce seedlings

Normeperidine

Ethyl 4-phenylpiperidine-4-carboxylic acid

C14H19NO2 (233.1416)

Pethidine (INN) or meperidine hydrochloride (USAN) (commonly referred to as Demerol in the US but also referred to as: isonipecaine; lidol; pethanol; piridosal; Algil; Alodan; Centralgin; Dispadol; Dolantin; Mialgin (in Indonesia); Petidin Dolargan (in Poland); Dolestine; Dolosal; Dolsin; Mefedina) is a fast-acting opioid analgesic drug. Pethidine is quickly hydrolysed in the liver to pethidinic acid and is also demethylated to norpethidine, which has half the analgesic activity of pethidine but a longer elimination half-life (8-12 hours); accumulating with regular administration, or in renal failure. Norpethidine is toxic and has convulsant and hallucinogenic effects. The toxic effects mediated by the metabolites cannot be countered with opioid receptor antagonists such as naloxone or naltrexone and are probably primarily due to norpethidines anticholinergic activity probably due to its structural similarity to atropine though its pharmacology has not been thoroughly explored. The neurotoxicity of pethidines metabolites is a unique feature of pethidine compared to other opioids. Pethidines metabolites are further conjugated with glucuronic acid and excreted into the urine. D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D002800 - Cholinesterase Inhibitors D004791 - Enzyme Inhibitors

Lysinoalanine

2-amino-6-[(2-amino-2-carboxyethyl)amino]hexanoic acid

C9H19N3O4 (233.1375)

Nephrotoxic food contaminan

Thalictroidine

1-(4-hydroxyphenyl)-2-(1-methylpiperidin-2-yl)ethan-1-one

C14H19NO2 (233.1416)

Thalictroidine is found in coffee and coffee products. Thalictroidine is an alkaloid from the rhizomes of Caulophyllum thalictroides (blue cohosh Alkaloid from the rhizomes of Caulophyllum thalictroides (blue cohosh). Thalictroidine is found in coffee and coffee products.

Seryllysine

(2S)-6-Amino-2-{[(2S)-2-amino-1,3-dihydroxypropylidene]amino}hexanoate

C9H19N3O4 (233.1375)

Seryllysine is a dipeptide composed of serine 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.

Serylglutamine

(2S)-2-[(2S)-2-amino-3-hydroxypropanamido]-4-carbamoylbutanoic acid

C8H15N3O5 (233.1012)

Serylglutamine is a dipeptide composed of serine and glutamine. 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.

Lysylserine

(2S)-2-[(2S)-2,6-diaminohexanamido]-3-hydroxypropanoic acid

C9H19N3O4 (233.1375)

Lysylserine is a dipeptide composed of lysine and serine. 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.

Asparaginyl-Threonine

2-{[2-amino-1-hydroxy-3-(C-hydroxycarbonimidoyl)propylidene]amino}-3-hydroxybutanoate

C8H15N3O5 (233.1012)

Asparaginyl-Threonine is a dipeptide composed of asparagine and threonine. 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.

Threonylasparagine

(2S)-4-Amino-2-[[(2S,3R)-2-amino-3-hydroxybutanoyl]amino]-4-oxobutanoic acid

C8H15N3O5 (233.1012)

Threonylasparagine is a dipeptide composed of threonine and asparagine. 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.

Glutaminylserine

(2S)-2-{[(2S)-2-amino-1-hydroxy-4-(C-hydroxycarbonimidoyl)butylidene]amino}-3-hydroxypropanoate

C8H15N3O5 (233.1012)

Glutaminylserine is a dipeptide composed of glutamine and serine. 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.

Hydroxypropionylcarnitine

(3S)-3-[(3-hydroxypropanoyl)oxy]-4-(trimethylazaniumyl)butanoate

C10H19NO5 (233.1263)

Hydroxypropionylcarnitine is an acylcarnitine. More specifically, it is an hydroxypropionoic 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. Hydroxypropionylcarnitine is therefore classified as a short chain AC. As a short-chain acylcarnitine hydroxypropionylcarnitine is a member of the most abundant group of carnitines in the body, comprising more than 50\\% of all acylcarnitines quantified in tissues and biofluids (PMID: 31920980). Some short-chain carnitines have been studied as supplements or treatments for a number of diseases, including neurological disorders and inborn errors of metabolism. It is also decreased in the urine of individuals with obesity (PMID: 26910390) and systolic heart failure (PMID: 26010610). Hydroxypropionylcarnitine can also be found incerebrospinal fluid. Carnitine acetyltransferase (CrAT, EC:2.3.1.7) is responsible for the synthesis of all short-chain and short branched-chain acylcarnitines (PMID: 23485643). 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]. A human metabolite taken as a putative food compound of mammalian origin [HMDB]

Dexmethylphenidate

methyl (2R)-2-phenyl-2-[(2R)-piperidin-2-yl]acetate

C14H19NO2 (233.1416)

Dexmethylphenidate is only found in individuals that have used or taken this drug. It is the dextrorotary form of methylphenidate. It is used for treatment of Attention Deficit Hyperactivity Disorder (ADHD). Methylphenidate blocks dopamine uptake in central adrenergic neurons by blocking dopamine transport or carrier proteins. Methylphenidate acts at the brain stem arousal system and the cerebral cortex and causes increased sympathomimetic activity in the central nervous system.Methylphenidate is a catecholamine reuptake inhibitor that indirectly increases catecholaminergic neurotransmission by inhibiting the dopamine transporter (DAT) and norepinephrine transporter (NET), which are responsible for clearing catecholamines from the synapse, particularly in the striatum and meso-limbic system. N - Nervous system > N06 - Psychoanaleptics > N06B - Psychostimulants, agents used for adhd and nootropics > N06BA - Centrally acting sympathomimetics D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018765 - Dopamine Uptake Inhibitors D002491 - Central Nervous System Agents > D000697 - Central Nervous System Stimulants C78272 - Agent Affecting Nervous System > C47795 - CNS Stimulant D018377 - Neurotransmitter Agents > D015259 - Dopamine Agents D049990 - Membrane Transport Modulators

Serinyl-Gamma-glutamate

2-Amino-4-[(2-amino-3-hydroxypropanoyl)-C-hydroxycarbonimidoyl]butanoate

C8H15N3O5 (233.1012)

Serinyl-Gamma-glutamate is a dipeptide composed of serine and gamma-glutamate. 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.

2-Heptylbenzothiazole

2-heptyl-1,3-benzothiazole

C14H19NS (233.1238)

2-Heptylbenzothiazole is found in nuts. 2-Heptylbenzothiazole is a volatile flavour component of roasted peanuts. Volatile flavour component of roasted peanuts. 2-Heptylbenzothiazole is found in nuts.

1-(1,3-Benzodioxol-5-ylcarbonyl)piperidine

1-(2H-1,3-benzodioxole-5-carbonyl)piperidine