Exact Mass: 319.1563

Exact Mass Matches: 319.1563

Found 111 metabolites which its exact mass value is equals to given mass value 319.1563, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

(2S)-2-Hydroxy-2-(propan-2-yl)butanedioylcarnitine

3-{[3-carboxy-3-hydroxy-3-(propan-2-yl)propanoyl]oxy}-4-(trimethylazaniumyl)butanoate

C14H25NO7 (319.1631)

(2S)-2-hydroxy-2-(propan-2-yl)butanedioylcarnitine is an acylcarnitine. More specifically, it is an (2S)-2-hydroxy-2-(propan-2-yl)butanedioic 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. (2S)-2-hydroxy-2-(propan-2-yl)butanedioylcarnitine is therefore classified as a medium chain AC. As a medium-chain acylcarnitine (2S)-2-hydroxy-2-(propan-2-yl)butanedioylcarnitine 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].

Oxetorone

(3-{9,18-dioxatetracyclo[9.7.0.0^{3,8}.0^{12,17}]octadeca-1(11),3,5,7,12,14,16-heptaen-2-ylidene}propyl)dimethylamine

C21H21NO2 (319.1572)

N - Nervous system > N02 - Analgesics > N02C - Antimigraine preparations

1,3-Propanediol, 2-((3-fluoranthenylmethyl)amino)-2-methyl-

2-{[(fluoranthen-3-yl)methyl]amino}-2-methylpropane-1,3-diol

C21H21NO2 (319.1572)

Cynaustine

[(7AR)-2,3,5,7a-tetrahydro-1H-pyrrolizin-7-yl]methyl (2R)-2-hydroxy-2-[(1S)-1-hydroxyethyl]-3-methylbutanoic acid hydrochloride

C15H26ClNO4 (319.155)

Cynaustine belongs to alkaloids and derivatives class of compounds. Those are naturally occurring chemical compounds that contain mostly basic nitrogen atoms. This group also includes some related compounds with neutral and even weakly acidic propertiesand is also some synthetic compounds of similar structure are attributed to alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen, sulfur and more rarely other elements such as chlorine, bromine, and phosphorus. Cynaustine is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Cynaustine can be found in borage, which makes cynaustine a potential biomarker for the consumption of this food product.