Exact Mass: 478.3294
Exact Mass Matches: 478.3294
Found 57 metabolites which its exact mass value is equals to given mass value 478.3294,
within given mass tolerance error 4.0E-5 dalton. Try search metabolite list with more accurate mass tolerance error
8.0E-6 dalton.
Polyporusterone A
14-(2,3-dihydroxy-5,6-dimethylheptan-2-yl)-4,5,11-trihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-9-en-8-one
Polyporusterone A is found in mushrooms. Polyporusterone A is a constituent of Polyporus umbellatus (zhu ling). Constituent of Polyporus umbellatus (zhu ling). Polyporusterone A is found in mushrooms. Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis)[1]. Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis)[1].
Dolicholide
15-(3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl)-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
Dolicholide is found in common bean. Dolicholide is a constituent of Dolichos lablab (hyacinth bean).
(13R)-labda-7,14-diene 13-O-alpha-L-(4-O-acetyl)-6-deoxyidopyranoside|labda-7,14-dien-13(R)-ol-4-O-acetyl-alpha-L-6-deoxyidopyranoside
(13R)-labda-7,14-diene 13-O-alpha-L-(4-O-acetyl)-6-deoxyidopyranoside|labda-7,14-dien-13(R)-ol-4-O-acetyl-alpha-L-6-deoxyidopyranoside
astern-13(S)-1(10),14-diene-13-O-alpha-L-2-acetylrhamnopyranoside
astern-13(S)-1(10),14-diene-13-O-alpha-L-2-acetylrhamnopyranoside
labda-7,14-dien-13(R)-ol-2-O-acetyl-alpha-L-rhamnopyranoside
labda-7,14-dien-13(R)-ol-2-O-acetyl-alpha-L-rhamnopyranoside
7beta-acetoxy-6alpha-(2-methylbutyryloxy)-13,14-dihydrokolavenic acid methyl ester|7beta-acetoxy-6alpha-<2-methylbutyryloxy>-13,14-dihydrokolavenic acid methyl ester
7beta-acetoxy-6alpha-(2-methylbutyryloxy)-13,14-dihydrokolavenic acid methyl ester|7beta-acetoxy-6alpha-<2-methylbutyryloxy>-13,14-dihydrokolavenic acid methyl ester
(25S)-3beta,4beta,6alpha,8,26-pentahydroxy-24-methyl-5alpha-cholest-24(241)-en-15-one|certonardosterol Q1
(25S)-3beta,4beta,6alpha,8,26-pentahydroxy-24-methyl-5alpha-cholest-24(241)-en-15-one|certonardosterol Q1
labda-7,14-dien-13(R)-ol-3-O-acetyl-alpha-L-rhamnopyranoside
labda-7,14-dien-13(R)-ol-3-O-acetyl-alpha-L-rhamnopyranoside
ST 28:2;O6
(2S,3R,5R,9R,10R,13R,14S,17S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
Polyporusterone A is a steroid. Polyporusterone A is a natural product found in Polyporus umbellatus with data available. Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis)[1]. Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis)[1].
(2S,3R,10R,13R,14S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
NCGC00380758-01!(2S,3R,10R,13R,14S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
(2S,3R,10R,13R,14S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one [IIN-based on: CCMSLIB00000848325]
NCGC00380758-01!(2S,3R,10R,13R,14S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one [IIN-based on: CCMSLIB00000848325]
(2S,3R,10R,13R,14S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one [IIN-based: Match]
NCGC00380758-01!(2S,3R,10R,13R,14S)-17-[(2R,3R,5S)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one [IIN-based: Match]
Dolicholide
15-(3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl)-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0^{2,7}.0^{12,16}]octadecan-8-one
Polyporusterone A
14-(2,3-dihydroxy-5,6-dimethylheptan-2-yl)-4,5,11-trihydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-9-en-8-one
Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis)[1]. Polyporusterone A is a triterpene carboxylic acid isolated from Polyporus umbellatus Fries. Polyporusterone A has inhibitory effect on free radical-induced lysis of red blood cells (hemolysis)[1].
(2beta,3beta,9epsilon,17epsilon,22R)-2,3,14,20,22-Pentahydroxyergost-7-en-6-one
(2beta,3beta,9epsilon,17epsilon,22R)-2,3,14,20,22-Pentahydroxyergost-7-en-6-one
(1s,2s,3r,4s,7s,8r,11s,12r,14r,17s)-4,14-dihydroxy-4,8,11-trimethyl-15-methylidene-10,18-dioxatetracyclo[9.7.0.0²,⁷.0³,¹⁷]octadecan-12-yl octanoate
(1s,2s,3r,4s,7s,8r,11s,12r,14r,17s)-4,14-dihydroxy-4,8,11-trimethyl-15-methylidene-10,18-dioxatetracyclo[9.7.0.0²,⁷.0³,¹⁷]octadecan-12-yl octanoate
1-(5,6-dimethylhept-3-en-2-yl)-3a,3b,5,5a,7-pentahydroxy-9a,11a-dimethyl-decahydro-1h-cyclopenta[a]phenanthren-4-one
1-(5,6-dimethylhept-3-en-2-yl)-3a,3b,5,5a,7-pentahydroxy-9a,11a-dimethyl-decahydro-1h-cyclopenta[a]phenanthren-4-one
(1r,3ar,3bs,5s,5as,6r,7s,9as,9br,11ar)-3b,5,6,7-tetrahydroxy-1-[(2r,6s)-7-hydroxy-6-methyl-5-methylideneheptan-2-yl]-9a,11a-dimethyl-dodecahydro-1h-cyclopenta[a]phenanthren-3-one
(1r,3ar,3bs,5s,5as,6r,7s,9as,9br,11ar)-3b,5,6,7-tetrahydroxy-1-[(2r,6s)-7-hydroxy-6-methyl-5-methylideneheptan-2-yl]-9a,11a-dimethyl-dodecahydro-1h-cyclopenta[a]phenanthren-3-one
(1s,3as,5ar,7r,8s,9ar,9br,11ar)-1-[(2r,3r,5s)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-3a,7,8-trihydroxy-9a,11a-dimethyl-1h,2h,3h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-5-one
(1s,3as,5ar,7r,8s,9ar,9br,11ar)-1-[(2r,3r,5s)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-3a,7,8-trihydroxy-9a,11a-dimethyl-1h,2h,3h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-5-one
(1s,3as,5ar,7r,8s,9ar,9br,11ar)-1-[(2r,3r,5r)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-3a,7,8-trihydroxy-9a,11a-dimethyl-1h,2h,3h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-5-one
(1s,3as,5ar,7r,8s,9ar,9br,11ar)-1-[(2r,3r,5r)-2,3-dihydroxy-5,6-dimethylheptan-2-yl]-3a,7,8-trihydroxy-9a,11a-dimethyl-1h,2h,3h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-5-one
methyl 5-[3-(acetyloxy)-1,2,4a,5-tetramethyl-4-[(2-methylbutanoyl)oxy]-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpentanoate
methyl 5-[3-(acetyloxy)-1,2,4a,5-tetramethyl-4-[(2-methylbutanoyl)oxy]-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpentanoate
(1's,2r,2's,4s,4'r,7'r,8'r,9's,11's,12's,13's,15'r,16's,18's)-4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosane]-7',11',15',16'-tetrol
(1's,2r,2's,4s,4'r,7'r,8'r,9's,11's,12's,13's,15'r,16's,18's)-4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosane]-7',11',15',16'-tetrol
6-{[5-(2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl)-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
6-{[5-(2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl)-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(1s,2r,4r,5s,7s,11s,12r,15s,16s)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(1s,2r,4r,5s,7s,11s,12r,15s,16s)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(1r,2r,4r,5s,7s,11s,12s,15r,16s)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(1r,2r,4r,5s,7s,11s,12s,15r,16s)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(2r,3r,4r,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(2r,3r,4r,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(1s,2r,4r,5s,7s,11s,12s,15r,16s)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(1s,2r,4r,5s,7s,11s,12s,15r,16s)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
methyl (3s)-5-[(1r,2s,3r,4r,4ar,8ar)-3-(acetyloxy)-1,2,4a,5-tetramethyl-4-{[(2r)-2-methylbutanoyl]oxy}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpentanoate
methyl (3s)-5-[(1r,2s,3r,4r,4ar,8ar)-3-(acetyloxy)-1,2,4a,5-tetramethyl-4-{[(2r)-2-methylbutanoyl]oxy}-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]-3-methylpentanoate
(2s,3r,4r,5s,6s)-2-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-3,5-dihydroxy-6-methyloxan-4-yl acetate
(2s,3r,4r,5s,6s)-2-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-3,5-dihydroxy-6-methyloxan-4-yl acetate
(4r,5s,15r)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(4r,5s,15r)-15-[(2s,3r,4r)-3,4-dihydroxy-6-methyl-5-methylideneheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(1s,2r,4r,5s,7s,11s,12s,15r,16s)-4,5-dihydroxy-15-[(2s,3r,5s)-3-hydroxy-5,6-dimethyl-4-oxoheptan-2-yl]-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(1s,2r,4r,5s,7s,11s,12s,15r,16s)-4,5-dihydroxy-15-[(2s,3r,5s)-3-hydroxy-5,6-dimethyl-4-oxoheptan-2-yl]-2,16-dimethyl-9-oxatetracyclo[9.7.0.0²,⁷.0¹²,¹⁶]octadecan-8-one
(2s,3s,4r,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(2s,3s,4r,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(1's,2s,2's,4s,4's,7'r,8'r,9's,11's,12's,13's,15'r,16's,18's)-4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosane]-7',11',15',16'-tetrol
(1's,2s,2's,4s,4's,7'r,8'r,9's,11's,12's,13's,15'r,16's,18's)-4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosane]-7',11',15',16'-tetrol
2-{[5-(2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl)-3-methylpent-1-en-3-yl]oxy}-3,5-dihydroxy-6-methyloxan-4-yl acetate
2-{[5-(2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl)-3-methylpent-1-en-3-yl]oxy}-3,5-dihydroxy-6-methyloxan-4-yl acetate
(2s,3r,4s,5s,6r)-2-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-3,5-dihydroxy-6-methyloxan-4-yl acetate
(2s,3r,4s,5s,6r)-2-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-3,5-dihydroxy-6-methyloxan-4-yl acetate
1-(2,3-dihydroxy-5,6-dimethylheptan-2-yl)-3a,7,8-trihydroxy-9a,11a-dimethyl-1h,2h,3h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-5-one
1-(2,3-dihydroxy-5,6-dimethylheptan-2-yl)-3a,7,8-trihydroxy-9a,11a-dimethyl-1h,2h,3h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-5-one
(2s,3r,4s,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(2s,3r,4s,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(2s,3s,4r,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-5,5,8a-trimethyl-2-methylidene-hexahydro-1h-naphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
(2s,3s,4r,5r,6s)-6-{[(3r)-5-[(1s,4as,8as)-5,5,8a-trimethyl-2-methylidene-hexahydro-1h-naphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-2-methyloxan-3-yl acetate
4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosane]-7',11',15',16'-tetrol
4,5,5,7',9',13'-hexamethyl-5'-oxaspiro[oxolane-2,6'-pentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icosane]-7',11',15',16'-tetrol
(2s,3r,4r,5r,6s)-2-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-6-methyloxan-3-yl acetate
(2s,3r,4r,5r,6s)-2-{[(3r)-5-[(1s,4as,8as)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-6-methyloxan-3-yl acetate
4,14-dihydroxy-4,8,11-trimethyl-15-methylidene-10,18-dioxatetracyclo[9.7.0.0²,⁷.0³,¹⁷]octadecan-12-yl octanoate
4,14-dihydroxy-4,8,11-trimethyl-15-methylidene-10,18-dioxatetracyclo[9.7.0.0²,⁷.0³,¹⁷]octadecan-12-yl octanoate
(1r,3as,3bs,5s,5ar,7s,9ar,11ar)-1-[(2r,3e,5r)-5,6-dimethylhept-3-en-2-yl]-3a,3b,5,5a,7-pentahydroxy-9a,11a-dimethyl-decahydro-1h-cyclopenta[a]phenanthren-4-one
(1r,3as,3bs,5s,5ar,7s,9ar,11ar)-1-[(2r,3e,5r)-5,6-dimethylhept-3-en-2-yl]-3a,3b,5,5a,7-pentahydroxy-9a,11a-dimethyl-decahydro-1h-cyclopenta[a]phenanthren-4-one
3b,5,6,7-tetrahydroxy-1-(7-hydroxy-6-methyl-5-methylideneheptan-2-yl)-9a,11a-dimethyl-dodecahydro-1h-cyclopenta[a]phenanthren-3-one
3b,5,6,7-tetrahydroxy-1-(7-hydroxy-6-methyl-5-methylideneheptan-2-yl)-9a,11a-dimethyl-dodecahydro-1h-cyclopenta[a]phenanthren-3-one
2-{[5-(2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl)-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-6-methyloxan-3-yl acetate
2-{[5-(2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl)-3-methylpent-1-en-3-yl]oxy}-4,5-dihydroxy-6-methyloxan-3-yl acetate
