Exact Mass: 520.1581

Exact Mass Matches: 520.1581

Found 58 metabolites which its exact mass value is equals to given mass value 520.1581, within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error 0.0002 dalton.

Chryso-obtusin glucoside

Chryso-obtusin glucoside

C25H28O12 (520.1581)


   

Ethyl 4-[5-[(2-ethoxypyrimidin-5-yl)methyl]-2-[(4-fluorophenyl)methylsulfanyl]-4-oxopyrimidin-1-yl]benzoate

ethyl 4-{5-[(2-ethoxypyrimidin-5-yl)methyl]-2-{[(4-fluorophenyl)methyl]sulfanyl}-4-oxo-1,4-dihydropyrimidin-1-yl}benzoate

C27H25FN4O4S (520.158)


   

5-Hydroxy-7,8,2,3-tetramethoxyflavone 5-glucoside

5-Hydroxy-7,8,2,3-tetramethoxyflavone 5-glucoside

C25H28O12 (520.1581)


   

Julichrome Q6 glucuronide

(-)-Julichrome Q6 glucuronide

C25H28O12 (520.1581)


   

Quercetin 5,7,3,4-tetramethyl ether 3-galactoside

2- (3,4-Dimethoxyphenyl) -3- (beta-D-galactopyranosyloxy) -5,7-dimethoxy-4H-1-benzopyran-4-one

C25H28O12 (520.1581)


   
   

Lethedoside B

5- (beta-D-glucopyranosyloxy) -7-methoxy-2- (3,4,5-trimethoxyphenyl) -4H-1-benzopyran-4-one

C25H28O12 (520.1581)


   

6-Hydroxytricetin 6,7,3,5-tetramethyl eter 5-rhamnoside

6-Hydroxytricetin 6,7,3,5-tetramethyl eter 5-rhamnoside

C25H28O12 (520.1581)


   

Zosterin

4,2-Dihydroxy-4,6-diacetoxydihydrochalcone 2-O-glucoside

C25H28O12 (520.1581)


   

1-[4,5-dihydroxy-6-(hydroxymethyl)-3-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxyoxan-2-yl]oxy-6-hydroxy-7-methylidene-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-4-carboxylic acid

1-[4,5-dihydroxy-6-(hydroxymethyl)-3-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxyoxan-2-yl]oxy-6-hydroxy-7-methylidene-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-4-carboxylic acid

C25H28O12 (520.1581)


   

(2S,3R)-2-(1,3-benzodioxol-5-yl)-3-[(beta-D-glucopyranosyloxy)methyl]-2,3-dihydro-7-methoxybenzofuran-5-carboxylic acid methyl ester|cedralin B

(2S,3R)-2-(1,3-benzodioxol-5-yl)-3-[(beta-D-glucopyranosyloxy)methyl]-2,3-dihydro-7-methoxybenzofuran-5-carboxylic acid methyl ester|cedralin B

C25H28O12 (520.1581)


   

methyl 6-O-(E)-p-hydroxycinnamoxyl-glucosyringate

methyl 6-O-(E)-p-hydroxycinnamoxyl-glucosyringate

C25H28O12 (520.1581)


   

6-O-trans-p-coumaroylgeniposidic acid

6-O-trans-p-coumaroylgeniposidic acid

C25H28O12 (520.1581)


   

4-O-benzoyl-beta-D-xylopyranosyl(1->2)-7-O-benzoyl-beta-D-glucopyranoside

4-O-benzoyl-beta-D-xylopyranosyl(1->2)-7-O-benzoyl-beta-D-glucopyranoside

C25H28O12 (520.1581)


   

4-O-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]swertiamarin

4-O-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]swertiamarin

C25H28O12 (520.1581)


   

loniphenyruviridoside C

loniphenyruviridoside C

C25H28O12 (520.1581)


A natural product found in Lonicera japonica.

   

6-O-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]swertiamarin|6-O-[(E)-coumaroyl]swertiamarin

6-O-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]swertiamarin|6-O-[(E)-coumaroyl]swertiamarin

C25H28O12 (520.1581)


   

(S)-(-)-5,7,3,5-tetrahydroxyflavanone 7-O-(butyl beta-D-glucopyranosiduronate)|garccowaside B

(S)-(-)-5,7,3,5-tetrahydroxyflavanone 7-O-(butyl beta-D-glucopyranosiduronate)|garccowaside B

C25H28O12 (520.1581)


   

5-Hydroxy-7,8,2,5-tetramethoxyflavone 5-O-glucoside

5-Hydroxy-7,8,2,5-tetramethoxyflavone 5-O-glucoside

C25H28O12 (520.1581)


   

8,3-dihydroxy-3,7,4-trimethoxy-6-O-beta-D-glucopyranosyl flavone

8,3-dihydroxy-3,7,4-trimethoxy-6-O-beta-D-glucopyranosyl flavone

C25H28O12 (520.1581)


   

6-O-Cinnamoyl-8-epikingisidic acid

(1R,4aS,8S,8aS)-1-methyl-3-oxo-8-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(E)-3-phenylprop-2-enoyl]oxymethyl]oxan-2-yl]oxy-4,4a,8,8a-tetrahydro-1H-pyrano[3,4-c]pyran-5-carboxylic acid

C25H28O12 (520.1581)


   

1-[4,5-dihydroxy-6-(hydroxymethyl)-3-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxyoxan-2-yl]oxy-6-hydroxy-7-methylidene-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-4-carboxylic acid

NCGC00347746-02!1-[4,5-dihydroxy-6-(hydroxymethyl)-3-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxyoxan-2-yl]oxy-6-hydroxy-7-methylidene-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-4-carboxylic acid

C25H28O12 (520.1581)


   

C25H28O12

NCGC00380918-01_C25H28O12_

C25H28O12 (520.1581)


   

C25H28O12_Cyclopenta[c]pyran-4-carboxylic acid, 1,4a,5,6,7,7a-hexahydro-6-hydroxy-1-[[6-O-[(2E)-3-(4-hydroxyphenyl)-1-oxo-2-propen-1-yl]-beta-D-glucopyranosyl]oxy]-7-methylene

NCGC00380173-01_C25H28O12_Cyclopenta[c]pyran-4-carboxylic acid, 1,4a,5,6,7,7a-hexahydro-6-hydroxy-1-[[6-O-[(2E)-3-(4-hydroxyphenyl)-1-oxo-2-propen-1-yl]-beta-D-glucopyranosyl]oxy]-7-methylene-

C25H28O12 (520.1581)


   

C25H28O12_(2E)-3-(2-{[6-O-(3,4,5-Trimethoxybenzoyl)-beta-D-glucopyranosyl]oxy}phenyl)acrylic acid

NCGC00385149-01_C25H28O12_(2E)-3-(2-{[6-O-(3,4,5-Trimethoxybenzoyl)-beta-D-glucopyranosyl]oxy}phenyl)acrylic acid

C25H28O12 (520.1581)


   

1-[4,5-dihydroxy-6-(hydroxymethyl)-3-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxyoxan-2-yl]oxy-6-hydroxy-7-methylidene-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-4-carboxylic acid_major

1-[4,5-dihydroxy-6-(hydroxymethyl)-3-[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxyoxan-2-yl]oxy-6-hydroxy-7-methylidene-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-4-carboxylic acid_major

C25H28O12 (520.1581)


   

2-O-cis-coumaroylgardoside

2-O-cis-coumaroylgardoside

C25H28O12 (520.1581)


   

Loniphenyruviridoside D

Loniphenyruviridoside D

C25H28O12 (520.1581)


A natural product found in Lonicera japonica.

   

Loniphenyruviridoside B

Loniphenyruviridoside B

C25H28O12 (520.1581)


   

3,4,5-Trihydroxy-6-[2-[9-(3-methylbut-2-enoyloxy)-2-oxo-8,9-dihydrouro[2,3-h]chromen-8-yl]propan-2-yloxy]oxane-2-carboxylic acid

3,4,5-Trihydroxy-6-[2-[9-(3-methylbut-2-enoyloxy)-2-oxo-8,9-dihydrouro[2,3-h]chromen-8-yl]propan-2-yloxy]oxane-2-carboxylic acid

C25H28O12 (520.1581)


   

Loniphenyruviridoside B, (rel)-

Loniphenyruviridoside B, (rel)-

C25H28O12 (520.1581)


A natural product found in Lonicera japonica.

   

(2r,3s,4r,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl (2e)-3-(4-hydroxyphenyl)prop-2-enoate

(2r,3s,4r,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl (2e)-3-(4-hydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-3-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-3-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

C25H28O12 (520.1581)


   

[(2r,3s,4s,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-3,4,5-trihydroxyoxan-2-yl]methyl (2e)-3-(4-hydroxyphenyl)prop-2-enoate

[(2r,3s,4s,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-3,4,5-trihydroxyoxan-2-yl]methyl (2e)-3-(4-hydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

methyl 2-(2h-1,3-benzodioxol-5-yl)-7-methoxy-3-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)-2,3-dihydro-1-benzofuran-5-carboxylate

methyl 2-(2h-1,3-benzodioxol-5-yl)-7-methoxy-3-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)-2,3-dihydro-1-benzofuran-5-carboxylate

C25H28O12 (520.1581)


   

1,2,3,8-tetramethoxy-6-methyl-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}anthracene-9,10-dione

1,2,3,8-tetramethoxy-6-methyl-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}anthracene-9,10-dione

C25H28O12 (520.1581)


   

[6-({4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-3,4,5-trihydroxyoxan-2-yl]methyl 3-(4-hydroxyphenyl)prop-2-enoate

[6-({4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-3,4,5-trihydroxyoxan-2-yl]methyl 3-(4-hydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

methyl (2s,3r)-2-(2h-1,3-benzodioxol-5-yl)-7-methoxy-3-({[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)-2,3-dihydro-1-benzofuran-5-carboxylate

methyl (2s,3r)-2-(2h-1,3-benzodioxol-5-yl)-7-methoxy-3-({[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)-2,3-dihydro-1-benzofuran-5-carboxylate

C25H28O12 (520.1581)


   

(2s,3r,4s,5r,6r)-2-{[(3s,4r,4as)-4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl (2e)-3-(3,4-dihydroxyphenyl)prop-2-enoate

(2s,3r,4s,5r,6r)-2-{[(3s,4r,4as)-4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl (2e)-3-(3,4-dihydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

(2r,3s,4r,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl (2z)-3-(4-hydroxyphenyl)prop-2-enoate

(2r,3s,4r,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl (2z)-3-(4-hydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

2-(2,3-dimethoxyphenyl)-7,8-dimethoxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

2-(2,3-dimethoxyphenyl)-7,8-dimethoxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

C25H28O12 (520.1581)


   

3-{[5-(benzoyloxy)-3,4-dihydroxyoxan-2-yl]oxy}-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl benzoate

3-{[5-(benzoyloxy)-3,4-dihydroxyoxan-2-yl]oxy}-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl benzoate

C25H28O12 (520.1581)


   

2-({4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl 3-(3,4-dihydroxyphenyl)prop-2-enoate

2-({4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl 3-(3,4-dihydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

[(2r,3s,4s,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-3,4,5-trihydroxyoxan-2-yl]methyl (2z)-3-(4-hydroxyphenyl)prop-2-enoate

[(2r,3s,4s,5r,6s)-6-{[(3s,4r,4ar)-4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-3,4,5-trihydroxyoxan-2-yl]methyl (2z)-3-(4-hydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

1-hydroxy-7-{[3,4,5-trihydroxy-6-({[5-hydroxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]oxy}methyl)oxan-2-yl]oxy}xanthen-9-one

1-hydroxy-7-{[3,4,5-trihydroxy-6-({[5-hydroxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]oxy}methyl)oxan-2-yl]oxy}xanthen-9-one

C25H28O12 (520.1581)


   

2-(2,5-dimethoxyphenyl)-7,8-dimethoxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

2-(2,5-dimethoxyphenyl)-7,8-dimethoxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

C25H28O12 (520.1581)


   

6-({5-[1-(acetyloxy)ethyl]-6,9-dihydroxy-6-methyl-8-oxo-5,7-dihydroanthracen-1-yl}oxy)-3,4,5-trihydroxyoxane-2-carboxylic acid

6-({5-[1-(acetyloxy)ethyl]-6,9-dihydroxy-6-methyl-8-oxo-5,7-dihydroanthracen-1-yl}oxy)-3,4,5-trihydroxyoxane-2-carboxylic acid

C25H28O12 (520.1581)


   

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-3-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-3-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

C25H28O12 (520.1581)


   

(2e)-3-[(3r,4as,5r,6s)-5-ethenyl-1-oxo-6-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]-2-hydroxy-3-phenylprop-2-enoic acid

(2e)-3-[(3r,4as,5r,6s)-5-ethenyl-1-oxo-6-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]-2-hydroxy-3-phenylprop-2-enoic acid

C25H28O12 (520.1581)


   

6-({4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl 3-(4-hydroxyphenyl)prop-2-enoate

6-({4-ethenyl-4a-hydroxy-8-oxo-3h,4h,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl 3-(4-hydroxyphenyl)prop-2-enoate

C25H28O12 (520.1581)


   

(2s,3r,4s,5r,6r)-2-{[(3r,4r,4ar)-4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4-(acetyloxy)-5-hydroxy-6-(hydroxymethyl)oxan-3-yl 3-hydroxybenzoate

(2s,3r,4s,5r,6r)-2-{[(3r,4r,4ar)-4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4-(acetyloxy)-5-hydroxy-6-(hydroxymethyl)oxan-3-yl 3-hydroxybenzoate

C25H28O12 (520.1581)


   

3-{[(2r,3r,4s,5r,6s)-6-{[(3s,4r,4as)-4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4-(acetyloxy)-3,5-dihydroxyoxan-2-yl]methoxy}benzoic acid

3-{[(2r,3r,4s,5r,6s)-6-{[(3s,4r,4as)-4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl]oxy}-4-(acetyloxy)-3,5-dihydroxyoxan-2-yl]methoxy}benzoic acid

C25H28O12 (520.1581)


   

2-(2,5-dimethoxyphenyl)-7,8-dimethoxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

2-(2,5-dimethoxyphenyl)-7,8-dimethoxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

C25H28O12 (520.1581)


   

7-methoxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-2-(3,4,5-trimethoxyphenyl)chromen-4-one

7-methoxy-5-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-2-(3,4,5-trimethoxyphenyl)chromen-4-one

C25H28O12 (520.1581)


   

(3r,4r,5r,6s)-6-{[(2s,3r,4s,5s,6r)-2-(benzoyloxy)-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy}-4,5-dihydroxyoxan-3-yl benzoate

(3r,4r,5r,6s)-6-{[(2s,3r,4s,5s,6r)-2-(benzoyloxy)-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy}-4,5-dihydroxyoxan-3-yl benzoate

C25H28O12 (520.1581)


   

2-(2,3-dimethoxyphenyl)-7,8-dimethoxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

2-(2,3-dimethoxyphenyl)-7,8-dimethoxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one

C25H28O12 (520.1581)


   

(2s,3s,4s,5r,6s)-6-{[(5s,6s)-5-[(1r)-1-(acetyloxy)ethyl]-6,9-dihydroxy-6-methyl-8-oxo-5,7-dihydroanthracen-1-yl]oxy}-3,4,5-trihydroxyoxane-2-carboxylic acid

(2s,3s,4s,5r,6s)-6-{[(5s,6s)-5-[(1r)-1-(acetyloxy)ethyl]-6,9-dihydroxy-6-methyl-8-oxo-5,7-dihydroanthracen-1-yl]oxy}-3,4,5-trihydroxyoxane-2-carboxylic acid

C25H28O12 (520.1581)