Exact Mass: 397.22663420000003

Exact Mass Matches: 397.22663420000003

Found 352 metabolites which its exact mass value is equals to given mass value 397.22663420000003, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Echimidine

7-Angelyl-9-echimidinylretronecine

C20H31NO7 (397.2100416)

CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 2304 INTERNAL_ID 2304; CONFIDENCE Reference Standard (Level 1)

3,4-dihydroxy-2-methyl-4-farnesyl-3H-quinolin-1-ium-1-olate

3,4-Dihydroxy-2-methy-4-[(2E,6E)-farnesyl]-3,4-dihydroquinoline 1-oxide

C25H35NO3 (397.26168000000007)

A member of the class of quinoline N-oxides that is 2-methyl-1-oxo-4-3,4-dihydroquinoline-3,4-diol carrying an additional (2E,6E)-farnesyl group at position 4.

Apatinib

C24H23N5O (397.1902508)

C274 - Antineoplastic Agent > C2189 - Signal Transduction Inhibitor > C129824 - Antineoplastic Protein Inhibitor C471 - Enzyme Inhibitor > C129825 - Antineoplastic Enzyme Inhibitor D004791 - Enzyme Inhibitors > D047428 - Protein Kinase Inhibitors D000970 - Antineoplastic Agents

Heliosupine

7-Angelyl-9-echimidinylheliotridine

C20H31NO7 (397.2100416)

Phytosphingosine-1-P

{[(2R,3R,4R)-2-amino-3,4-dihydroxyoctadecyl]oxy}phosphonic acid

C18H40NO6P (397.2593110000001)

Phytosphingosine-1-P is an intermediate in sphingolipid metabolism pathway. It is the enzymatic oxidation product of 4-hydroxysphinganine. Sphingolipids are essential components of the plasma membrane in all eukaryotic cells. S. cerevisiae cells make three complex sphingolipids: inositol-phosphoceramide (IPC), mannose-inositol-phosphoceramide (MIPC), and mannosyl-diinositol-phosphorylceramide (M(IP)2C) [ Dickson02 ]. In the yeast plasma membrane sphingolipids concentrate with ergosterol to form lipid rafts, specialized membrane microdomains implicated in a variety of cellular processes, including sorting of membrane proteins and lipids, as well as organizing and regulating signaling cascades [ Bagnat02 ]. Intermediates in sphingolipid biosynthesis have been shown to play important roles as signaling molecules and growth regulators. Sphingolipid long chain bases (LCBs), dihydrosphingosine (DHS) and phytosphingosine (PHS), have been implicated as secondary messengers in signaling pathways that regulate heat stress response. Other intermediates, phytoceramide and long-chain base phosphates (LCBPs), have been shown to be components of tightly-controlled ceramide/LCBP rheostat, which regulates cell growth. Since phosphoinositol-containing sphingolipids are unique to fungi, the sphingolipid biosynthesis pathway is considered a target for antifungal drugs. Phytosphingosine-1-p, also known as phs-1-phosphate, is a member of the class of compounds known as phosphosphingolipids. Phosphosphingolipids are sphingolipids with a structure based on a sphingoid base that is attached to a phosphate head group. They differ from phosphonospingolipids which have a phosphonate head group. Phytosphingosine-1-p is practically insoluble (in water) and a moderately acidic compound (based on its pKa). Phytosphingosine-1-p can be found in a number of food items such as dandelion, common verbena, turmeric, and fennel, which makes phytosphingosine-1-p a potential biomarker for the consumption of these food products.

Drotaverine

(1Z)-1-[(3,4-diethoxyphenyl)methylidene]-6,7-diethoxy-1,2,3,4-tetrahydroisoquinoline

C24H31NO4 (397.22529660000004)

Drotaverine (INN, also known as drotaverin) is an antispasmodic drug, structurally related to papaverine. Drotaverine is a selective inhibitor of phosphodiesterase 4, and has no anticholinergic effects. Drotaverine has been shown to possess dose-dependant analgesic effects in animal models. One small study has shown drotaverine to be eliminated mainly non-renally. A - Alimentary tract and metabolism > A03 - Drugs for functional gastrointestinal disorders > A03A - Drugs for functional gastrointestinal disorders > A03AD - Papaverine and derivatives C78272 - Agent Affecting Nervous System > C66880 - Anticholinergic Agent > C29704 - Antimuscarinic Agent D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D010276 - Parasympatholytics D002492 - Central Nervous System Depressants > D009294 - Narcotics > D053610 - Opiate Alkaloids D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents C78272 - Agent Affecting Nervous System > C29698 - Antispasmodic Agent D002491 - Central Nervous System Agents > D000700 - Analgesics D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents

Tetradeca-9,11-dienedioylcarnitine

3-[(13-carboxytrideca-9,11-dienoyl)oxy]-4-(trimethylazaniumyl)butanoate

C21H35NO6 (397.24642500000004)

Tetradeca-9,11-dienedioylcarnitine is an acylcarnitine. More specifically, it is an tetradeca-9,11-dienedioic 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. Tetradeca-9,11-dienedioylcarnitine is therefore classified as a long chain AC. As a long-chain acylcarnitine Tetradeca-9,11-dienedioylcarnitine is generally formed through esterification with long-chain fatty acids obtained from the diet. The main function of most long-chain acylcarnitines is to ensure long chain fatty acid transport into the mitochondria (PMID: 22804748). Altered levels of long-chain acylcarnitines can serve as useful markers for inherited disorders of long-chain fatty acid metabolism. Carnitine palmitoyltransferase I (CPT I, EC:2.3.1.21) is involved in the synthesis of long-chain acylcarnitines (more than C12) on the mitochondrial outer membrane. Elevated serum/plasma levels of long-chain acylcarnitines are not only markers for incomplete FA oxidation but also are indicators of altered carbohydrate and lipid metabolism. High serum concentrations of long-chain acylcarnitines in the postprandial or fed state are markers of insulin resistance and arise from insulins inability to inhibit CPT-1-dependent fatty acid metabolism in muscles and the heart (PMID: 19073774). Increased intracellular content of long-chain acylcarnitines is thought to serve as a feedback inhibition mechanism of insulin action (PMID: 23258903). In healthy subjects, increased concentrations of insulin effectively inhibits long-chain acylcarnitine production. Several studies have also found increased levels of circulating long-chain acylcarnitines in chronic heart failure patients (PMID: 26796394). 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].

(6E,9E)-Tetradeca-6,9-dienedioylcarnitine

3-[(13-carboxytrideca-6,9-dienoyl)oxy]-4-(trimethylazaniumyl)butanoate

C21H35NO6 (397.24642500000004)

(6E,9E)-Tetradeca-6,9-dienedioylcarnitine is an acylcarnitine. More specifically, it is an (6E,9E)-tetradeca-6,9-dienedioic 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. (6E,9E)-Tetradeca-6,9-dienedioylcarnitine is therefore classified as a long chain AC. As a long-chain acylcarnitine (6E,9E)-Tetradeca-6,9-dienedioylcarnitine is generally formed through esterification with long-chain fatty acids obtained from the diet. The main function of most long-chain acylcarnitines is to ensure long chain fatty acid transport into the mitochondria (PMID: 22804748). Altered levels of long-chain acylcarnitines can serve as useful markers for inherited disorders of long-chain fatty acid metabolism. Carnitine palmitoyltransferase I (CPT I, EC:2.3.1.21) is involved in the synthesis of long-chain acylcarnitines (more than C12) on the mitochondrial outer membrane. Elevated serum/plasma levels of long-chain acylcarnitines are not only markers for incomplete FA oxidation but also are indicators of altered carbohydrate and lipid metabolism. High serum concentrations of long-chain acylcarnitines in the postprandial or fed state are markers of insulin resistance and arise from insulins inability to inhibit CPT-1-dependent fatty acid metabolism in muscles and the heart (PMID: 19073774). Increased intracellular content of long-chain acylcarnitines is thought to serve as a feedback inhibition mechanism of insulin action (PMID: 23258903). In healthy subjects, increased concentrations of insulin effectively inhibits long-chain acylcarnitine production. Several studies have also found increased levels of circulating long-chain acylcarnitines in chronic heart failure patients (PMID: 26796394). 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].

(2E,4Z)-Tetradeca-2,4-dienedioylcarnitine

3-[(13-carboxytrideca-2,4-dienoyl)oxy]-4-(trimethylazaniumyl)butanoate

C21H35NO6 (397.24642500000004)

(2E,4Z)-Tetradeca-2,4-dienedioylcarnitine is an acylcarnitine. More specifically, it is an (2E,4Z)-tetradeca-2,4-dienedioic 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. (2E,4Z)-Tetradeca-2,4-dienedioylcarnitine is therefore classified as a long chain AC. As a long-chain acylcarnitine (2E,4Z)-Tetradeca-2,4-dienedioylcarnitine is generally formed through esterification with long-chain fatty acids obtained from the diet. The main function of most long-chain acylcarnitines is to ensure long chain fatty acid transport into the mitochondria (PMID: 22804748). Altered levels of long-chain acylcarnitines can serve as useful markers for inherited disorders of long-chain fatty acid metabolism. Carnitine palmitoyltransferase I (CPT I, EC:2.3.1.21) is involved in the synthesis of long-chain acylcarnitines (more than C12) on the mitochondrial outer membrane. Elevated serum/plasma levels of long-chain acylcarnitines are not only markers for incomplete FA oxidation but also are indicators of altered carbohydrate and lipid metabolism. High serum concentrations of long-chain acylcarnitines in the postprandial or fed state are markers of insulin resistance and arise from insulins inability to inhibit CPT-1-dependent fatty acid metabolism in muscles and the heart (PMID: 19073774). Increased intracellular content of long-chain acylcarnitines is thought to serve as a feedback inhibition mechanism of insulin action (PMID: 23258903). In healthy subjects, increased concentrations of insulin effectively inhibits long-chain acylcarnitine production. Several studies have also found increased levels of circulating long-chain acylcarnitines in chronic heart failure patients (PMID: 26796394). 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].