Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-19 04:52:53 UTC
Update Date2024-04-30 20:12:17 UTC
Metabolite IDMMDBc0033542
Metabolite Identification
Common NameNonanoylcarnitine
DescriptionNonanoylcarnitine is an acylcarnitine. More specifically, it is an nonanoic 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. Nonanoylcarnitine is therefore classified as a medium chain AC. As a medium-chain acylcarnitine nonanoylcarnitine 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. It is also decreased in the blood or plasma of individuals with psoriasis (PMID: 28695330 , PMID: 33391503 ), pregnancy (PMID: 24704061 - in serum of pregnant women with fetus with CHD). It is also decreased in the urine of individuals with obesity (PMID: 26910390 ). 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].
Structure
Synonyms
ValueSource
3-(Nonanoyloxy)-4-(trimethylammonio)butanoateChEBI
3-(Nonanoyloxy)-4-(trimethylammonio)butanoic acidGenerator
Nonayl-L-carnitineHMDB
NonaylcarnitineHMDB
Molecular FormulaC16H31NO4
Average Mass301.4216
Monoisotopic Mass301.225308485
IUPAC Name3-(nonanoyloxy)-4-(trimethylazaniumyl)butanoate
Traditional Name3-(nonanoyloxy)-4-(trimethylammonio)butanoate
CAS Registry Number1935-18-8
SMILES
CCCCCCCCC(=O)OC(CC([O-])=O)C[N+](C)(C)C
InChI Identifier
InChI=1S/C16H31NO4/c1-5-6-7-8-9-10-11-16(20)21-14(12-15(18)19)13-17(2,3)4/h14H,5-13H2,1-4H3
InChI KeyMPSPNFAQQQMFLK-UHFFFAOYSA-N