Exact Mass: 755.3992892
Exact Mass Matches: 755.3992892
Found 63 metabolites which its exact mass value is equals to given mass value 755.3992892,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
PE(14:1(9Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15))
PE(14:1(9Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)) is an oxidized phosphatidylethanolamine (PE). Oxidized phosphatidylethanolamines are glycerophospholipids in which a phosphorylethanolamine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylethanolamines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphatidylethanolamines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PE(14:1(9Z)/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)), in particular, consists of one chain of one 9Z-tetradecenoyl at the C-1 position and one chain of Lipoxin A5 at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PEs can be synthesized via three different routes. In one route, the oxidized PE is synthetized de novo following the same mechanisms as for PEs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PE backbone, mainly through the action of LOX (PMID: 33329396).
PE(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/14:1(9Z))
PE(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/14:1(9Z)) is an oxidized phosphatidylethanolamine (PE). Oxidized phosphatidylethanolamines are glycerophospholipids in which a phosphorylethanolamine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylethanolamines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphatidylethanolamines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PE(20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)/14:1(9Z)), in particular, consists of one chain of one Lipoxin A5 at the C-1 position and one chain of 9Z-tetradecenoyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PEs can be synthesized via three different routes. In one route, the oxidized PE is synthetized de novo following the same mechanisms as for PEs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PE backbone, mainly through the action of LOX (PMID: 33329396).
N-3-Ylmethylamino)ethoxy)-tetrahydrofuran-3-yloxy)-tetrahydro-2H-pyran-3,4-diol
C31H61N7O14 (755.4276285999999)
2-[2-[[(1S)-1-carboxylato-5-[[(E)-dec-2-enoyl]-hydroxyamino]pentyl]amino]-2-oxoethyl]-4-[[(1S)-1-carboxylato-5-[hydroxy(octanoyl)amino]pentyl]amino]-2-hydroxy-4-oxobutanoate
Ac-Cha-Arg-MeAla-Haic-NHCH(CH2OH)2
C37H57N9O8 (755.4329882000001)
(6Z,9Z,12Z,15Z)-N-[(E)-1-[3,4-dihydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3-hydroxynon-4-en-2-yl]octadeca-6,9,12,15-tetraenamide
(4Z,7Z,10Z,13Z)-N-[(E)-1-[3,4-dihydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3-hydroxyundec-4-en-2-yl]hexadeca-4,7,10,13-tetraenamide
(3Z,6Z,9Z,12Z,15Z)-N-[1-[3,4-dihydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3-hydroxynonan-2-yl]octadeca-3,6,9,12,15-pentaenamide
N-[(4E,8E)-1-[5-[3,4-dihydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3-hydroxytrideca-4,8-dien-2-yl]acetamide
C33H57NO18 (755.3575462000001)
N-[(4E,8E)-1-[5-[3,4-dihydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3-hydroxydodeca-4,8-dien-2-yl]propanamide
C33H57NO18 (755.3575462000001)
2-[(5s,8r,11r,14s,17s)-17-(3-aminopropyl)-14-[(2s)-butan-2-yl]-3,6,9,12,15,18-hexahydroxy-5-(1h-indol-3-ylmethyl)-8-isopropyl-11-(2-methylpropyl)-1,4,7,10,13,16-hexaazacyclooctadeca-1(18),3,6,9,12,15-hexaen-2-yl]-2-hydroxyethanimidic acid
C37H57N9O8 (755.4329882000001)
(3s,9s,13s,16s,21as)-3,16-dibenzyl-4,11-dihydroxy-13-isopropyl-2,6,10,10,15-pentamethyl-9-(pent-4-yn-1-yl)-3h,6h,9h,13h,16h,19h,20h,21h,21ah-pyrrolo[2,1-i]1-oxa-4,7,10,13,16-pentaazacyclononadecane-1,7,14,17-tetrone
C43H57N5O7 (755.4257771999999)
(2s)-2-{[(2s)-2-[(2s,3s)-2-[(2s)-2-{[1,2-dihydroxy-3-(methylamino)octylidene]amino}-n,3-dimethylbutanamido]-n,3-dimethylpentanamido]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino}-3-(4-hydroxyphenyl)propanoic acid
(2r)-n'-[2-({[(1s,2r,3r,4s,6s,8r,9s,10s,13s,16s,17r,18s)-11-ethyl-8,9-dihydroxy-6,16,18-trimethoxy-4-[(2-methylpropanoyl)oxy]-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecan-13-yl]methoxy}carbonyl)phenyl]-2-methylbutanediimidic acid
(2s)-n-[2-({[(1s,2r,3r,4s,5r,6s,8r,9s,10s,13s,16s,17r,18s)-11-ethyl-8,9-dihydroxy-6,16,18-trimethoxy-4-[(2-methylpropanoyl)oxy]-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecan-13-yl]methoxy}carbonyl)phenyl]-2-methylbutanediimidic acid
2-({2-[2-(2-{[1,2-dihydroxy-3-(methylamino)decylidene]amino}-n-methylpropanamido)-n,4-dimethylpentanamido]-1-hydroxy-3-(4-hydroxyphenyl)propylidene}amino)-3-(4-hydroxyphenyl)propanoic acid
n'-{2-[({11-ethyl-8,9-dihydroxy-6,16,18-trimethoxy-4-[(2-methylpropanoyl)oxy]-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecan-13-yl}methoxy)carbonyl]phenyl}-2-methylbutanediimidic acid
(7r,8r)-7-{[(2s,4s,5s,6s)-4-(dimethylamino)-5-{[(2s,5s,6s)-5-{[(2s,5s,6s)-5-hydroxy-6-methyloxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-8-ethyl-1,6,8,11-tetrahydroxy-9,10-dihydro-7h-tetracene-5,12-dione
(3s,6s,9s,13s,16s,21as)-3,16-dibenzyl-4,11-dihydroxy-13-isopropyl-2,6,10,10,15-pentamethyl-9-(pent-4-yn-1-yl)-3h,6h,9h,13h,16h,19h,20h,21h,21ah-pyrrolo[2,1-i]1-oxa-4,7,10,13,16-pentaazacyclononadecane-1,7,14,17-tetrone
C43H57N5O7 (755.4257771999999)
3,16-dibenzyl-4,11-dihydroxy-13-isopropyl-2,6,10,10,15-pentamethyl-9-(pent-4-yn-1-yl)-3h,6h,9h,13h,16h,19h,20h,21h,21ah-pyrrolo[2,1-i]1-oxa-4,7,10,13,16-pentaazacyclononadecane-1,7,14,17-tetrone
C43H57N5O7 (755.4257771999999)
(2r)-n-[2-({[(1s,2r,3r,4s,5r,6s,8r,9s,10s,13s,16s,17r,18s)-11-ethyl-8,9-dihydroxy-6,16,18-trimethoxy-4-[(2-methylpropanoyl)oxy]-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecan-13-yl]methoxy}carbonyl)phenyl]-2-methylbutanediimidic acid
(7r,8r)-7-{[4-(dimethylamino)-5-({5-[(5-hydroxy-6-methyloxan-2-yl)oxy]-6-methyloxan-2-yl}oxy)-6-methyloxan-2-yl]oxy}-8-ethyl-1,6,8,11-tetrahydroxy-9,10-dihydro-7h-tetracene-5,12-dione
10,12,14,16,23-pentahydroxy-6,10,19-trimethyl-13-[(2-methylbut-2-enoyl)oxy]-24-oxa-4-azaheptacyclo[12.12.0.0²,¹¹.0⁴,⁹.0¹⁵,²⁵.0¹⁸,²³.0¹⁹,²⁵]hexacosan-22-yl 3,4-dimethoxybenzoate
C41H57NO12 (755.3880561999999)
7-{6,7'-dihydroxy-2,5,5,8a-tetramethyl-3,4,4a,6,7,8-hexahydro-2h-3',11'-dioxaspiro[naphthalene-1,4'-tricyclo[7.3.0.0²,⁶]dodecane]-1',6',8'-trien-12'-yl}-4,6'-dihydroxy-2',5',5',8'a-tetramethyl-3,3',4',4'a,6',7',8,8'-octahydro-2'h-spiro[furo[2,3-e]isoindole-2,1'-naphthalen]-6-one
2-({2-[2-(2-{[1,2-dihydroxy-3-(methylamino)octylidene]amino}-n,3-dimethylbutanamido)-n,3-dimethylpentanamido]-1-hydroxy-3-(4-hydroxyphenyl)propylidene}amino)-3-(4-hydroxyphenyl)propanoic acid
(1s,2r,6r,9r,10s,11r,12s,13s,14s,15r,16s,18s,19s,22s,23s,25r)-10,12,14,16,23-pentahydroxy-6,10,19-trimethyl-13-{[(2z)-2-methylbut-2-enoyl]oxy}-24-oxa-4-azaheptacyclo[12.12.0.0²,¹¹.0⁴,⁹.0¹⁵,²⁵.0¹⁸,²³.0¹⁹,²⁵]hexacosan-22-yl 3,4-dimethoxybenzoate
C41H57NO12 (755.3880561999999)