Exact Mass: 658.2526

Exact Mass Matches: 658.2526

Found 26 metabolites which its exact mass value is equals to given mass value 658.2526, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

Gluten exorphin B5

2-({[(2S)-2-({[2-({[2-({[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]oxy}amino)acetyl]oxy}amino)acetyl]oxy}amino)-3-(1H-indol-3-yl)propanoyl]oxy}amino)-4-methylpentanoic acid

C30H38N6O11 (658.2598)


Gluten exorphin B5 is a pentapeptide with the sequence Tyr-Gly-Gly-Trp-Leu. Gluten exorphins are a group of opioid peptides which are formed during digestion of the gluten protein. It has been hypothesized that people with autism and schizophrenia have abnormal leakage from the gut of these compounds, which then pass into the brain and disrupt brain function. This is partly the basis for the gluten-free, casein-free diet. The scientific evidence for this diet and its effects is still disputed.

   
   
   

PC-2004-65-2003-18

PC-2004-65-2003-18

C34H42O13 (658.2625)


   

(2R,3R,4S,2R)-1-[2,3,4,5-tetrahydro-2-methoxycarbonyl-2-(4-methoxyphenyl)-6-methoxy-7,8-methylenedioxy-5-oxo-3-phenyl-1-benzoxepin-4-carbonyl]-2-(3-methylpropanoylamino)-pyrrolidine|thapoxepine B

(2R,3R,4S,2R)-1-[2,3,4,5-tetrahydro-2-methoxycarbonyl-2-(4-methoxyphenyl)-6-methoxy-7,8-methylenedioxy-5-oxo-3-phenyl-1-benzoxepin-4-carbonyl]-2-(3-methylpropanoylamino)-pyrrolidine|thapoxepine B

C36H38N2O10 (658.2526)


   
   

cephalancetine D|rel-(1R,3aS,5R,14bR)-1-hydroxy-5-[(1S,11R,12R,13S,15R,18R)-12-hydroxy-13-methoxy-5,7,21-trioxa-19-azahexacyclo[11.7.1.02,10.04,8.011,15.015,19]henicosa-2(10),3,8-trien-18-yl]-2-methoxy-1,4,5,8,9,14b-hexahydro-6H-cyclopenta[a][1,3]dioxolo[4,5-h]pyrrolo[2,1-b][3]benzazepin-6-one

cephalancetine D|rel-(1R,3aS,5R,14bR)-1-hydroxy-5-[(1S,11R,12R,13S,15R,18R)-12-hydroxy-13-methoxy-5,7,21-trioxa-19-azahexacyclo[11.7.1.02,10.04,8.011,15.015,19]henicosa-2(10),3,8-trien-18-yl]-2-methoxy-1,4,5,8,9,14b-hexahydro-6H-cyclopenta[a][1,3]dioxolo[4,5-h]pyrrolo[2,1-b][3]benzazepin-6-one

C36H38N2O10 (658.2526)


   

alphapolynin B

alphapolynin B

C34H42O13 (658.2625)


   

1,3-Bis(tributylstannyl)benzene

1,3-Bis(tributylstannyl)benzene

C30H58Sn2 (658.2582)


   

tributyl-(4-tributylstannylphenyl)stannane

tributyl-(4-tributylstannylphenyl)stannane

C30H58Sn2 (658.2582)


   
   

n-[(2r)-1-[(11r,12r,13s)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

n-[(2r)-1-[(11r,12r,13s)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

C36H38N2O10 (658.2526)


   

(3ar,4r,6ar,8s,9ar,9br)-3,6,9-trimethylidene-2-oxo-8-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-({[2-(4-hydroxyphenyl)acetyl]oxy}methyl)oxan-2-yl]oxy}-octahydroazuleno[4,5-b]furan-4-yl (2r)-2-hydroxy-3-methylbutanoate

(3ar,4r,6ar,8s,9ar,9br)-3,6,9-trimethylidene-2-oxo-8-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-({[2-(4-hydroxyphenyl)acetyl]oxy}methyl)oxan-2-yl]oxy}-octahydroazuleno[4,5-b]furan-4-yl (2r)-2-hydroxy-3-methylbutanoate

C34H42O13 (658.2625)


   

(3s,3ar,4r,5r,6r,7as)-6-[(4s,5r,5ar,9as)-4-(acetyloxy)-5,9a-dimethyl-2,7-dioxo-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl]-5-(formyloxy)-3-(furan-3-yl)-7a-hydroxy-3a-methyl-7-methylidene-1-oxo-tetrahydro-2h-inden-4-yl 3-methylbutanoate

(3s,3ar,4r,5r,6r,7as)-6-[(4s,5r,5ar,9as)-4-(acetyloxy)-5,9a-dimethyl-2,7-dioxo-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl]-5-(formyloxy)-3-(furan-3-yl)-7a-hydroxy-3a-methyl-7-methylidene-1-oxo-tetrahydro-2h-inden-4-yl 3-methylbutanoate

C34H42O13 (658.2625)


   

n-[(2r)-1-[(11r,12s,13r)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

n-[(2r)-1-[(11r,12s,13r)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

C36H38N2O10 (658.2526)


   

[3,4,5-trihydroxy-6-(4-{4-hydroxy-3-[(4-hydroxy-3-methoxyphenyl)methyl]-2-(hydroxymethyl)butyl}-2-methoxyphenoxy)oxan-2-yl]methyl 4-methoxybenzoate

[3,4,5-trihydroxy-6-(4-{4-hydroxy-3-[(4-hydroxy-3-methoxyphenyl)methyl]-2-(hydroxymethyl)butyl}-2-methoxyphenoxy)oxan-2-yl]methyl 4-methoxybenzoate

C34H42O13 (658.2625)


   

6-[4-(acetyloxy)-5,9a-dimethyl-2,7-dioxo-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl]-5-(formyloxy)-3-(furan-3-yl)-7a-hydroxy-3a-methyl-7-methylidene-1-oxo-tetrahydro-2h-inden-4-yl 3-methylbutanoate

6-[4-(acetyloxy)-5,9a-dimethyl-2,7-dioxo-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl]-5-(formyloxy)-3-(furan-3-yl)-7a-hydroxy-3a-methyl-7-methylidene-1-oxo-tetrahydro-2h-inden-4-yl 3-methylbutanoate

C34H42O13 (658.2625)


   

n-{1-[2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl}-2-methylpropanimidic acid

n-{1-[2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl}-2-methylpropanimidic acid

C36H38N2O10 (658.2526)


   

3,6,9-trimethylidene-2-oxo-8-{[3,4,5-trihydroxy-6-({[2-(4-hydroxyphenyl)acetyl]oxy}methyl)oxan-2-yl]oxy}-octahydroazuleno[4,5-b]furan-4-yl 2-hydroxy-3-methylbutanoate

3,6,9-trimethylidene-2-oxo-8-{[3,4,5-trihydroxy-6-({[2-(4-hydroxyphenyl)acetyl]oxy}methyl)oxan-2-yl]oxy}-octahydroazuleno[4,5-b]furan-4-yl 2-hydroxy-3-methylbutanoate

C34H42O13 (658.2625)


   

8-{[3,4-dihydroxy-6-(hydroxymethyl)-5-{[2-(4-hydroxyphenyl)acetyl]oxy}oxan-2-yl]oxy}-3,6,9-trimethylidene-2-oxo-octahydroazuleno[4,5-b]furan-4-yl 2-hydroxy-3-methylbutanoate

8-{[3,4-dihydroxy-6-(hydroxymethyl)-5-{[2-(4-hydroxyphenyl)acetyl]oxy}oxan-2-yl]oxy}-3,6,9-trimethylidene-2-oxo-octahydroazuleno[4,5-b]furan-4-yl 2-hydroxy-3-methylbutanoate

C34H42O13 (658.2625)


   

(3r,5s,10s,13s,14s,15r,23s,26s)-5-chloro-12,14,15,25-tetrahydroxy-23-(hydroxymethyl)-10,23,29,29-tetramethyl-21-oxa-1,7,8,11,17,18,24,30-octaazatetracyclo[24.4.0.0³,⁸.0¹³,¹⁸]triaconta-11,16,24-triene-2,9,19,22-tetrone

(3r,5s,10s,13s,14s,15r,23s,26s)-5-chloro-12,14,15,25-tetrahydroxy-23-(hydroxymethyl)-10,23,29,29-tetramethyl-21-oxa-1,7,8,11,17,18,24,30-octaazatetracyclo[24.4.0.0³,⁸.0¹³,¹⁸]triaconta-11,16,24-triene-2,9,19,22-tetrone

C26H39ClN8O10 (658.2478)


   

[(2r,3s,4s,5r,6s)-3,4,5-trihydroxy-6-{4-[(2s,3r)-4-hydroxy-3-[(4-hydroxy-3-methoxyphenyl)methyl]-2-(hydroxymethyl)butyl]-2-methoxyphenoxy}oxan-2-yl]methyl 4-methoxybenzoate

[(2r,3s,4s,5r,6s)-3,4,5-trihydroxy-6-{4-[(2s,3r)-4-hydroxy-3-[(4-hydroxy-3-methoxyphenyl)methyl]-2-(hydroxymethyl)butyl]-2-methoxyphenoxy}oxan-2-yl]methyl 4-methoxybenzoate

C34H42O13 (658.2625)


   

n-[(2s)-1-[(11r,12s,13r)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

n-[(2s)-1-[(11r,12s,13r)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

C36H38N2O10 (658.2526)


   

n-[(2s)-1-[(11r,12r,13s)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

n-[(2s)-1-[(11r,12r,13s)-2-methoxy-11-(methoxycarbonyl)-11-(4-methoxyphenyl)-14-oxo-12-phenyl-4,6,10-trioxatricyclo[7.5.0.0³,⁷]tetradeca-1,3(7),8-triene-13-carbonyl]pyrrolidin-2-yl]-2-methylpropanimidic acid

C36H38N2O10 (658.2526)


   

(3ar,4r,6ar,8s,9ar,9br)-8-{[(2r,3r,4r,5s,6r)-3,4-dihydroxy-6-(hydroxymethyl)-5-{[2-(4-hydroxyphenyl)acetyl]oxy}oxan-2-yl]oxy}-3,6,9-trimethylidene-2-oxo-octahydroazuleno[4,5-b]furan-4-yl (2r)-2-hydroxy-3-methylbutanoate

(3ar,4r,6ar,8s,9ar,9br)-8-{[(2r,3r,4r,5s,6r)-3,4-dihydroxy-6-(hydroxymethyl)-5-{[2-(4-hydroxyphenyl)acetyl]oxy}oxan-2-yl]oxy}-3,6,9-trimethylidene-2-oxo-octahydroazuleno[4,5-b]furan-4-yl (2r)-2-hydroxy-3-methylbutanoate

C34H42O13 (658.2625)


   

5-chloro-12,14,15,25-tetrahydroxy-23-(hydroxymethyl)-10,23,29,29-tetramethyl-21-oxa-1,7,8,11,17,18,24,30-octaazatetracyclo[24.4.0.0³,⁸.0¹³,¹⁸]triaconta-11,16,24-triene-2,9,19,22-tetrone

5-chloro-12,14,15,25-tetrahydroxy-23-(hydroxymethyl)-10,23,29,29-tetramethyl-21-oxa-1,7,8,11,17,18,24,30-octaazatetracyclo[24.4.0.0³,⁸.0¹³,¹⁸]triaconta-11,16,24-triene-2,9,19,22-tetrone

C26H39ClN8O10 (658.2478)