Exact Mass: 512.3171
Exact Mass Matches: 512.3171
Found 73 metabolites which its exact mass value is equals to given mass value 512.3171,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
Glyuranolide
Methyl (1S,2R,5R,6R,11S,14S,19S,21S)-11-hydroxy-2,6,10,10,14,21-hexamethyl-16,22-dioxo-23-oxahexacyclo[19.2.1.0²,¹⁹.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴]tetracos-17-ene-5-carboxylic acid
Glyuranolide is found in herbs and spices. Glyuranolide is a constituent of Glycyrrhiza uralensis (Chinese licorice). Constituent of Glycyrrhiza uralensis (Chinese licorice). Glyuranolide is found in herbs and spices.
Carindone
6,7-bis(2-hydroxypropan-2-yl)-4,5,8a,9a-tetramethyl-3,3a,4,5,6,6,7,7,8,8,8a,9,9a,9b-tetradecahydro-1H,3H-spiro[naphthalene-2,2-naphtho[1,2-b]furan]-3,3,4-trione
Carindone is found in beverages. Carindone is a constituent of Carissa carandas (karanda). Constituent of Carissa carandas (karanda). Carindone is found in beverages and fruits.
1-Stearoylglycerophosphoglycerol
(2,3-dihydroxypropoxy)[2-hydroxy-3-(octadecanoyloxy)propoxy]phosphinic acid
1-Stearoylglycerophosphoglycerol is a phosphatidylglycerol. It is a glycerophospholipid in which a phosphorylserine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidylserines can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. PG(18:0/0:0), in particular, consists of two octadecanoyl chains at positions C-1 and C-2. In E. coli glycerophospholipid metabolism, phosphatidylglycerol is formed from phosphatidic acid (1,2-diacyl-sn-glycerol 3-phosphate) by a sequence of enzymatic reactions that proceeds via two intermediates, cytidine diphosphate diacylglycerol (CDP-diacylglycerol) and phosphatidylglycerophosphate (PGP, a phosphorylated phosphatidylglycerol). Phosphatidylglycerols, along with CDP-diacylglycerol, also serve as precursor molecules for the synthesis of cardiolipin, a phospholipid found in membranes.
2-Stearoylglycerophosphoglycerol
(2,3-dihydroxypropoxy)[3-hydroxy-2-(octadecanoyloxy)propoxy]phosphinic acid
2-Stearoylglycerophosphoglycerol is a phosphatidylglycerol. It is a glycerophospholipid in which a phosphorylserine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidylserines can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. PG(0:0/18:0), in particular, consists of two octadecanoyl chains at positions C-1 and C-2. In E. coli glycerophospholipid metabolism, phosphatidylglycerol is formed from phosphatidic acid (1,2-diacyl-sn-glycerol 3-phosphate) by a sequence of enzymatic reactions that proceeds via two intermediates, cytidine diphosphate diacylglycerol (CDP-diacylglycerol) and phosphatidylglycerophosphate (PGP, a phosphorylated phosphatidylglycerol). Phosphatidylglycerols, along with CDP-diacylglycerol, also serve as precursor molecules for the synthesis of cardiolipin, a phospholipid found in membranes.
(5E,9Z)-6-bromo-28-methyloctacosa-5,9-dienoic acid
(5E,9Z)-6-bromo-28-methyloctacosa-5,9-dienoic acid
Di-Ac-(1beta,3beta)-Spirosta-5,25(27)-diene-1,3-diol
Di-Ac-(1beta,3beta)-Spirosta-5,25(27)-diene-1,3-diol
(+)-20-hydroxy-23-oxo-3,4-seco-lanosta-4(28),7(8),9(11),24(31)-tetraene-3,26-dicarboxylic acid|(+)-spongiporic acid B
(+)-20-hydroxy-23-oxo-3,4-seco-lanosta-4(28),7(8),9(11),24(31)-tetraene-3,26-dicarboxylic acid|(+)-spongiporic acid B
(3beta,4beta,11alpha,12alpha,13beta)-11,12-epoxy-4,13-dihydroxy-3,23-(isopropylidenedioxy)-24,30-dinorolean-20(29)-en-28-oic acid 28,13-lactone
(3beta,4beta,11alpha,12alpha,13beta)-11,12-epoxy-4,13-dihydroxy-3,23-(isopropylidenedioxy)-24,30-dinorolean-20(29)-en-28-oic acid 28,13-lactone
(6Z)-14-[3,5-dihydroxy-4-(3-hydroxy-3-methylbutyl)phenyl]-1-(3,5-dihydroxyphenyl)tetradec-6-en-1-one|(Z)-6,7-didehydroglaucone A|2-(3-hydroxyisopentyl)-5,5-[(6Z)-1-oxotetradec-6-en-1,14-diyl]bisresorcinol|6,7-cis-dehydroglaucone A
(6Z)-14-[3,5-dihydroxy-4-(3-hydroxy-3-methylbutyl)phenyl]-1-(3,5-dihydroxyphenyl)tetradec-6-en-1-one|(Z)-6,7-didehydroglaucone A|2-(3-hydroxyisopentyl)-5,5-[(6Z)-1-oxotetradec-6-en-1,14-diyl]bisresorcinol|6,7-cis-dehydroglaucone A
9-hydroxy-3,9-hemiacetal-8,8-dimethyl-3,5-di-(3-methyl-2-butenyl)-7-(3-al,3-methyl-2-butenyl)-1(2-methyl-butanoyl) bicyclo[3.3.1]nonane-2,4-dione|spiranthenone A
9-hydroxy-3,9-hemiacetal-8,8-dimethyl-3,5-di-(3-methyl-2-butenyl)-7-(3-al,3-methyl-2-butenyl)-1(2-methyl-butanoyl) bicyclo[3.3.1]nonane-2,4-dione|spiranthenone A
(22S,24S)-16,24-anhydro-22,25-anhydro-2,16alpha,22,24,25-pentahydroxy-22-methoxy-3,11-dioxo-cucurbita-1,5-diene
(22S,24S)-16,24-anhydro-22,25-anhydro-2,16alpha,22,24,25-pentahydroxy-22-methoxy-3,11-dioxo-cucurbita-1,5-diene
26,27-dinor-17-oxa-1,14,20(22)-trien-3,16-dioxo-7alpha-acetoxy-17beta-methoxy-4,4,8-trimethyl(5alpha,13alpha)-cholane|meliacinin
26,27-dinor-17-oxa-1,14,20(22)-trien-3,16-dioxo-7alpha-acetoxy-17beta-methoxy-4,4,8-trimethyl(5alpha,13alpha)-cholane|meliacinin
(3beta,4beta,11alpha,12alpha,13beta)-11,12-epoxy-3,13-dihydroxy-4,23-(isopropylidenedioxy)-24,30-dinorolean-20(29)-en-28-oic acid 28,13-lactone
(3beta,4beta,11alpha,12alpha,13beta)-11,12-epoxy-3,13-dihydroxy-4,23-(isopropylidenedioxy)-24,30-dinorolean-20(29)-en-28-oic acid 28,13-lactone
(E)-2-methyl-4-((3aS)-1-methyl-2,3,8,8a-tetrahydropyrrolo[2,3-b]indol-3a(1H)-yl)but-2-en-1-yl (E)-2-methyl-4-((3aS)-1-methyl-2,3,8,8a-tetrahydropyrrolo[2,3-b]indol-3a(1H)-yl)but-2-enoate
(E)-2-methyl-4-((3aS)-1-methyl-2,3,8,8a-tetrahydropyrrolo[2,3-b]indol-3a(1H)-yl)but-2-en-1-yl (E)-2-methyl-4-((3aS)-1-methyl-2,3,8,8a-tetrahydropyrrolo[2,3-b]indol-3a(1H)-yl)but-2-enoate
PG(18:0/0:0)[U]
Octadecanoic acid, 3-[[(2,3-dihydroxypropoxy)hydroxyphosphinyl]oxy]-2-hydroxypropyl ester
Glyuranolide
methyl 11-hydroxy-2,6,10,10,14,21-hexamethyl-16,22-dioxo-23-oxahexacyclo[19.2.1.0^{2,19}.0^{5,18}.0^{6,15}.0^{9,14}]tetracos-17-ene-5-carboxylate
[(2R)-1-[2,3-dihydroxypropoxy(hydroxy)phosphoryl]oxy-3-hydroxypropan-2-yl] octadecanoate
[(2R)-1-[2,3-dihydroxypropoxy(hydroxy)phosphoryl]oxy-3-hydroxypropan-2-yl] octadecanoate
[(3S,5S,8S,9S,10R,13S,14S,17R)-17-[(2S,3S,5S)-3-hydroxy-5,6-dimethylheptan-2-yl]-10,13-dimethyl-6-oxo-1,2,3,4,5,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl] hydrogen sulfate
[(3S,5S,8S,9S,10R,13S,14S,17R)-17-[(2S,3S,5S)-3-hydroxy-5,6-dimethylheptan-2-yl]-10,13-dimethyl-6-oxo-1,2,3,4,5,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl] hydrogen sulfate
[3-carboxy-2-[(E)-7-[4,6-dihydroxy-2-[(1E,5E)-3-hydroxyocta-1,5-dienyl]oxan-3-yl]hept-5-enoyl]oxypropyl]-trimethylazanium
[3-carboxy-2-[(E)-7-[4,6-dihydroxy-2-[(1E,5E)-3-hydroxyocta-1,5-dienyl]oxan-3-yl]hept-5-enoyl]oxypropyl]-trimethylazanium
[(2S)-2-hydroxy-3-[(2E,6E,10E,14E)-3,7,11,15,19-pentamethylicosa-2,6,10,14,18-pentaenoxy]propyl] dihydrogen phosphate
[(2S)-2-hydroxy-3-[(2E,6E,10E,14E)-3,7,11,15,19-pentamethylicosa-2,6,10,14,18-pentaenoxy]propyl] dihydrogen phosphate
1-octadecanoyl-sn-glycero-3-phospho-(1-sn-glycerol)
1-octadecanoyl-sn-glycero-3-phospho-(1-sn-glycerol)
24-epi-cathasterone-22-O-sulfate
24-epi-cathasterone-22-O-sulfate
A brassinosteroid that is 24-epi-cathasterone on which the hydroxy hydrogen at position 22 has been replaced by a sulfo group.
methyl 11-hydroxy-2,6,10,10,14,21-hexamethyl-16,22-dioxo-23-oxahexacyclo[19.2.1.0²,¹⁹.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴]tetracos-17-ene-5-carboxylate
methyl 11-hydroxy-2,6,10,10,14,21-hexamethyl-16,22-dioxo-23-oxahexacyclo[19.2.1.0²,¹⁹.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴]tetracos-17-ene-5-carboxylate
methyl (2r)-2-hydroxy-2-[(1r,3r,4s)-3-hydroxy-4-[(9r,13r,17r)-8,8,13,17-tetramethyl-6-oxo-7-oxatetracyclo[10.7.0.0³,⁹.0¹³,¹⁷]nonadeca-1(12),2,4-trien-16-yl]cyclopentyl]propanoate
methyl (2r)-2-hydroxy-2-[(1r,3r,4s)-3-hydroxy-4-[(9r,13r,17r)-8,8,13,17-tetramethyl-6-oxo-7-oxatetracyclo[10.7.0.0³,⁹.0¹³,¹⁷]nonadeca-1(12),2,4-trien-16-yl]cyclopentyl]propanoate
(6z)-14-[3,5-dihydroxy-4-(3-hydroxy-3-methylbutyl)phenyl]-1-(3,5-dihydroxyphenyl)tetradec-6-en-1-one
(6z)-14-[3,5-dihydroxy-4-(3-hydroxy-3-methylbutyl)phenyl]-1-(3,5-dihydroxyphenyl)tetradec-6-en-1-one
(1s,4br,5r,6ar,10ar,10br,12ar)-1-[(2e)-hex-2-en-2-yl]-1-methoxy-4b,7,7,10a,12a-pentamethyl-3,8-dioxo-5h,6h,6ah,10bh,11h,12h-naphtho[2,1-f]isochromen-5-yl acetate
(1s,4br,5r,6ar,10ar,10br,12ar)-1-[(2e)-hex-2-en-2-yl]-1-methoxy-4b,7,7,10a,12a-pentamethyl-3,8-dioxo-5h,6h,6ah,10bh,11h,12h-naphtho[2,1-f]isochromen-5-yl acetate
1-(hex-2-en-2-yl)-1-methoxy-4b,7,7,10a,12a-pentamethyl-3,8-dioxo-5h,6h,6ah,10bh,11h,12h-naphtho[2,1-f]isochromen-5-yl acetate
1-(hex-2-en-2-yl)-1-methoxy-4b,7,7,10a,12a-pentamethyl-3,8-dioxo-5h,6h,6ah,10bh,11h,12h-naphtho[2,1-f]isochromen-5-yl acetate
6-[6-(2-carboxyethyl)-3a,6,9b-trimethyl-7-(prop-1-en-2-yl)-1h,2h,3h,4h,7h,8h-cyclopenta[a]naphthalen-3-yl]-6-hydroxy-2-methyl-3-methylidene-4-oxoheptanoic acid
6-[6-(2-carboxyethyl)-3a,6,9b-trimethyl-7-(prop-1-en-2-yl)-1h,2h,3h,4h,7h,8h-cyclopenta[a]naphthalen-3-yl]-6-hydroxy-2-methyl-3-methylidene-4-oxoheptanoic acid
(2e)-4-[(3as,8as)-1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl]-2-methylbut-2-en-1-yl (2e)-4-[(3as,8as)-1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl]-2-methylbut-2-enoate
(2e)-4-[(3as,8as)-1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl]-2-methylbut-2-en-1-yl (2e)-4-[(3as,8as)-1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl]-2-methylbut-2-enoate
9'-hydroxy-5,5,6',14',15'-pentamethyl-21'-methylidene-3',24'-dioxaspiro[1,4-dioxolane-2,10'-heptacyclo[16.5.2.0¹,¹⁵.0²,⁴.0⁵,¹⁴.0⁶,¹¹.0¹⁸,²³]pentacosan]-25'-one
9'-hydroxy-5,5,6',14',15'-pentamethyl-21'-methylidene-3',24'-dioxaspiro[1,4-dioxolane-2,10'-heptacyclo[16.5.2.0¹,¹⁵.0²,⁴.0⁵,¹⁴.0⁶,¹¹.0¹⁸,²³]pentacosan]-25'-one
[(1r,2r,5s,6s,7s,8s,9s,10r,13s,14s)-2,8-dihydroxy-5-isopropyl-9,13-dimethyl-7-[(2-methylpropanoyl)oxy]tetracyclo[7.5.0.0²,⁶.0¹⁰,¹⁴]tetradecan-6-yl]methyl benzoate
[(1r,2r,5s,6s,7s,8s,9s,10r,13s,14s)-2,8-dihydroxy-5-isopropyl-9,13-dimethyl-7-[(2-methylpropanoyl)oxy]tetracyclo[7.5.0.0²,⁶.0¹⁰,¹⁴]tetradecan-6-yl]methyl benzoate
[(1r,2r,5s,6s,7s,8s,9s,10r,13s,14s)-2,7-dihydroxy-5-isopropyl-9,13-dimethyl-8-[(2-methylpropanoyl)oxy]tetracyclo[7.5.0.0²,⁶.0¹⁰,¹⁴]tetradecan-6-yl]methyl benzoate
[(1r,2r,5s,6s,7s,8s,9s,10r,13s,14s)-2,7-dihydroxy-5-isopropyl-9,13-dimethyl-8-[(2-methylpropanoyl)oxy]tetracyclo[7.5.0.0²,⁶.0¹⁰,¹⁴]tetradecan-6-yl]methyl benzoate
2-methyl-4-{1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl}but-2-en-1-yl 2-methyl-4-{1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl}but-2-enoate
2-methyl-4-{1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl}but-2-en-1-yl 2-methyl-4-{1-methyl-2h,3h,8h,8ah-pyrrolo[2,3-b]indol-3a-yl}but-2-enoate
(2r,3'as,6r,7's,8ar,9'as,9'br)-6,7'-bis(2-hydroxypropan-2-yl)-4,5',8a,9'a-tetramethyl-3'a,5,6,6',7,7',8,8',9',9'b-decahydro-1h-spiro[naphthalene-2,2'-naphtho[1,2-b]furan]-3,3',4'-trione
(2r,3'as,6r,7's,8ar,9'as,9'br)-6,7'-bis(2-hydroxypropan-2-yl)-4,5',8a,9'a-tetramethyl-3'a,5,6,6',7,7',8,8',9',9'b-decahydro-1h-spiro[naphthalene-2,2'-naphtho[1,2-b]furan]-3,3',4'-trione
14-hydroxy-6,11,11,18,19-pentamethyl-25-methylidene-3,10,12,28-tetraoxaoctacyclo[20.5.2.0¹,¹⁹.0²,⁴.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴.0²²,²⁷]nonacosan-29-one
14-hydroxy-6,11,11,18,19-pentamethyl-25-methylidene-3,10,12,28-tetraoxaoctacyclo[20.5.2.0¹,¹⁹.0²,⁴.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴.0²²,²⁷]nonacosan-29-one
(1's,2s,2's,4's,5'r,6'r,9's,11'r,14'r,15's,18's,23'r)-9'-hydroxy-5,5,6',14',15'-pentamethyl-21'-methylidene-3',24'-dioxaspiro[1,4-dioxolane-2,10'-heptacyclo[16.5.2.0¹,¹⁵.0²,⁴.0⁵,¹⁴.0⁶,¹¹.0¹⁸,²³]pentacosan]-25'-one
(1's,2s,2's,4's,5'r,6'r,9's,11'r,14'r,15's,18's,23'r)-9'-hydroxy-5,5,6',14',15'-pentamethyl-21'-methylidene-3',24'-dioxaspiro[1,4-dioxolane-2,10'-heptacyclo[16.5.2.0¹,¹⁵.0²,⁴.0⁵,¹⁴.0⁶,¹¹.0¹⁸,²³]pentacosan]-25'-one
14-[3,5-dihydroxy-4-(3-hydroxy-3-methylbutyl)phenyl]-1-(3,5-dihydroxyphenyl)tetradec-6-en-1-one
14-[3,5-dihydroxy-4-(3-hydroxy-3-methylbutyl)phenyl]-1-(3,5-dihydroxyphenyl)tetradec-6-en-1-one
6,7'-bis(2-hydroxypropan-2-yl)-4,5',8a,9'a-tetramethyl-3'a,5,6,6',7,7',8,8',9',9'b-decahydro-1h-spiro[naphthalene-2,2'-naphtho[1,2-b]furan]-3,3',4'-trione
6,7'-bis(2-hydroxypropan-2-yl)-4,5',8a,9'a-tetramethyl-3'a,5,6,6',7,7',8,8',9',9'b-decahydro-1h-spiro[naphthalene-2,2'-naphtho[1,2-b]furan]-3,3',4'-trione
(5s,6r)-7,7-dimethyl-8-oxatetracyclo[24.2.2.0²,¹¹.0⁴,⁹]triaconta-1(28),2(11),3,9,26,29-hexaene-3,5,6,28,29-pentol
(5s,6r)-7,7-dimethyl-8-oxatetracyclo[24.2.2.0²,¹¹.0⁴,⁹]triaconta-1(28),2(11),3,9,26,29-hexaene-3,5,6,28,29-pentol
(2e,10e,12e,16e,18e)-6-hydroxy-3,5,7,9,11,15,17-heptamethyl-8-oxo-19-(6-oxo-2,3-dihydropyran-2-yl)nonadeca-2,10,12,16,18-pentaenoic acid
(2e,10e,12e,16e,18e)-6-hydroxy-3,5,7,9,11,15,17-heptamethyl-8-oxo-19-(6-oxo-2,3-dihydropyran-2-yl)nonadeca-2,10,12,16,18-pentaenoic acid
6-[(3s,3ar,6s,7r,9br)-6-(2-carboxyethyl)-3a,6,9b-trimethyl-7-(prop-1-en-2-yl)-1h,2h,3h,4h,7h,8h-cyclopenta[a]naphthalen-3-yl]-6-hydroxy-2-methyl-3-methylidene-4-oxoheptanoic acid
6-[(3s,3ar,6s,7r,9br)-6-(2-carboxyethyl)-3a,6,9b-trimethyl-7-(prop-1-en-2-yl)-1h,2h,3h,4h,7h,8h-cyclopenta[a]naphthalen-3-yl]-6-hydroxy-2-methyl-3-methylidene-4-oxoheptanoic acid
methyl (5z)-6-[(1s,9as,11ar)-7-hydroxy-3a,6,6,9a,11a-pentamethyl-4,10-dioxo-1h,2h,3h,5h,5ah,7h,8h,9h,11h-cyclopenta[a]phenanthren-1-yl]-2-methyl-4-oxohept-5-enoate
methyl (5z)-6-[(1s,9as,11ar)-7-hydroxy-3a,6,6,9a,11a-pentamethyl-4,10-dioxo-1h,2h,3h,5h,5ah,7h,8h,9h,11h-cyclopenta[a]phenanthren-1-yl]-2-methyl-4-oxohept-5-enoate
(1s,2s,4s,5r,6r,9s,14s,15r,18r,19s,22s,27r)-14-hydroxy-6,11,11,18,19-pentamethyl-25-methylidene-3,10,12,28-tetraoxaoctacyclo[20.5.2.0¹,¹⁹.0²,⁴.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴.0²²,²⁷]nonacosan-29-one
(1s,2s,4s,5r,6r,9s,14s,15r,18r,19s,22s,27r)-14-hydroxy-6,11,11,18,19-pentamethyl-25-methylidene-3,10,12,28-tetraoxaoctacyclo[20.5.2.0¹,¹⁹.0²,⁴.0⁵,¹⁸.0⁶,¹⁵.0⁹,¹⁴.0²²,²⁷]nonacosan-29-one
2-[(1z,2s,3as,3bs,5as,6s,9as,9bs,11ar)-2-(acetyloxy)-3a,3b,6,9a-tetramethyl-7,10-dioxo-decahydro-2h-cyclopenta[a]phenanthren-1-ylidene]-6-methylhept-5-enoic acid
2-[(1z,2s,3as,3bs,5as,6s,9as,9bs,11ar)-2-(acetyloxy)-3a,3b,6,9a-tetramethyl-7,10-dioxo-decahydro-2h-cyclopenta[a]phenanthren-1-ylidene]-6-methylhept-5-enoic acid
7,7-dimethyl-8-oxatetracyclo[24.2.2.0²,¹¹.0⁴,⁹]triaconta-1(28),2(11),3,9,26,29-hexaene-3,5,6,28,29-pentol
7,7-dimethyl-8-oxatetracyclo[24.2.2.0²,¹¹.0⁴,⁹]triaconta-1(28),2(11),3,9,26,29-hexaene-3,5,6,28,29-pentol
(2e,10e,12e,16z,18e)-6-hydroxy-3,5,7,9,11,15,17-heptamethyl-8-oxo-19-(6-oxo-2,3-dihydropyran-2-yl)nonadeca-2,10,12,16,18-pentaenoic acid
(2e,10e,12e,16z,18e)-6-hydroxy-3,5,7,9,11,15,17-heptamethyl-8-oxo-19-(6-oxo-2,3-dihydropyran-2-yl)nonadeca-2,10,12,16,18-pentaenoic acid
