Exact Mass: 292.0201924

Exact Mass Matches: 292.0201924

Found 83 metabolites which its exact mass value is equals to given mass value 292.0201924, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

5-(3-Hydroxy-4-acetoxybut-1-ynyl)-2,2-bithiophene

5-(3-Hydroxy-4-acetoxybut-1-ynyl)-2,2-bithiophene

C14H12O3S2 (292.0227842)


   

Carboxyphosphamide

3-({amino[bis(2-chloroethyl)amino]phosphoryl}oxy)propanoic acid

C7H15Cl2N2O4P (292.014646)


In contrast to previous adult studies on urinary metabolites, plasma carboxyphosphamide concentrations did not support the existence of polymorphic metabolism. Plasma concentrations of dechlorethylcyclophosphamide and carboxyphosphamide were correlated in individual patients, suggesting that the activity of both aldehyde dehydrogenase and cytochrome P450 enzyme(s) determine carboxyphosphamide production in vivo. (PMID: 7850793) Detoxification of cyclophosphamide is effected, in part, by hepatic class 1 aldehyde dehydrogenase (ALDH-1)-catalyzed oxidation of aldophosphamide, a pivotal aldehyde intermediate, to the nontoxic metabolite, carboxyphosphamide. (PMID: 9394035) A key finding was the detection of a metabolite, most likely carboxyphosphamide, that is formed only by cytosols from cells expressing either class 3 or class 1 ALDH. (PMID: 8662659) D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards

   

Carboxyifosfamide

3-({Bis[(2-chloroethyl)amino]phosphoryl}oxy)propanoic acid

C7H15Cl2N2O4P (292.014646)


Carboxyifosfamide is a metabolite of ifosfamide. Ifosfamide (also marketed as Mitoxana and Ifex) is a nitrogen mustard alkylating agent used in the treatment of cancer. It is sometimes abbreviated IFO. (Wikipedia) D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards

   

Bis(4-isothiocyanatobutyl) disulfide

1-Isothiocyanato-4-[(4-isothiocyanatobutyl)disulphanyl]butane

C10H16N2S4 (292.0196296)


Bis(4-isothiocyanatobutyl) disulfide is found in brassicas. Bis(4-isothiocyanatobutyl) disulfide is a constituent of salad rocket (Eruca sativa) Constituent of salad rocket (Eruca sativa). Bis(4-isothiocyanatobutyl) disulfide is found in brassicas.

   

Citreovirone

5,5-dichloro-4-Hydroxy-1-(3-hydroxy-5-methoxyphenyl)-2-pentanone, 9ci

C12H14Cl2O4 (292.0269104)


Citreovirone is a mycotoxin produced by the rice storage mould Penicillium citreo-viride. Mycotoxin production by the rice storage mould Penicillium citreo-viride.

   

2-Hydroxychlorpropamide

N-(4-Chloro-2-hydroxybenzenesulphonyl)propane-1-carbamimidic acid

C10H13ClN2O4S (292.0284528)


2-Hydroxychlorpropamide is a metabolite of Chlorpropamide. 2-hydroxychlorpropamide belongs to the family of Benzenesulfonamides. These are organic compounds containing a sulfonamide group that is S-linked to a benzene ring.

   

3-Hydroxychlorpropamide

N-(4-Chloro-3-hydroxybenzenesulphonyl)propane-1-carbamimidic acid

C10H13ClN2O4S (292.0284528)


3-Hydroxychlorpropamide is only found in individuals that have used or taken Chlorpropamide. 3-Hydroxychlorpropamide is a metabolite of Chlorpropamide. 3-hydroxychlorpropamide belongs to the family of Benzenesulfonamides. These are organic compounds containing a sulfonamide group that is S-linked to a benzene ring.

   

4-Hydroperoxycyclophosphamide

2-(Bis(2-chloroethyl)amino)tetrahydro-2-oxideo-2H-1,3,2-oxazaphosphorin-4-yl hydroperoxide

C7H15Cl2N2O4P (292.014646)


   

Brevifolincarboxylic acid

7,8,9-trihydroxy-3,5-dioxo-1H,2H,3H,5H-cyclopenta[c]isochromene-1-carboxylic acid

C13H8O8 (292.0219168)


Brevifolincarboxylic acid belongs to isocoumarins and derivatives class of compounds. Those are polycyclic compounds containing an isochromane which bears a ketone at the carbon C1. Brevifolincarboxylic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Brevifolincarboxylic acid can be found in pomegranate, which makes brevifolincarboxylic acid a potential biomarker for the consumption of this food product. Brevifolincarboxylic acid is extracted from Polygonum capitatum[1], has inhibitory effect on the aryl hydrocarbon receptor (AhR)[2]. Brevifolincarboxylic acid is an α-glucosidase inhibitor with an IC50 of 323.46 μM[3]. Brevifolincarboxylic acid is extracted from Polygonum capitatum[1], has inhibitory effect on the aryl hydrocarbon receptor (AhR)[2]. Brevifolincarboxylic acid is an α-glucosidase inhibitor with an IC50 of 323.46 μM[3].

   

Brevifolincarboxylic acid

InChI=1/C13H8O8/c14-5-2-4-7(10(17)9(5)16)8-3(12(18)19)1-6(15)11(8)21-13(4)20/h2-3,14,16-17H,1H2,(H,18,19)

C13H8O8 (292.0219168)


Brevifolincarboxylic acid is a natural product found in Melaleuca leucadendra, Euphorbia maculata, and other organisms with data available. Brevifolincarboxylic acid is extracted from Polygonum capitatum[1], has inhibitory effect on the aryl hydrocarbon receptor (AhR)[2]. Brevifolincarboxylic acid is an α-glucosidase inhibitor with an IC50 of 323.46 μM[3]. Brevifolincarboxylic acid is extracted from Polygonum capitatum[1], has inhibitory effect on the aryl hydrocarbon receptor (AhR)[2]. Brevifolincarboxylic acid is an α-glucosidase inhibitor with an IC50 of 323.46 μM[3].

   

Brevifolincarboxylic

InChI=1/C13H8O8/c14-5-2-4-7(10(17)9(5)16)8-3(12(18)19)1-6(15)11(8)21-13(4)20/h2-3,14,16-17H,1H2,(H,18,19)

C13H8O8 (292.0219168)


Brevifolincarboxylic acid is a natural product found in Melaleuca leucadendra, Euphorbia maculata, and other organisms with data available. Brevifolincarboxylic acid is extracted from Polygonum capitatum[1], has inhibitory effect on the aryl hydrocarbon receptor (AhR)[2]. Brevifolincarboxylic acid is an α-glucosidase inhibitor with an IC50 of 323.46 μM[3]. Brevifolincarboxylic acid is extracted from Polygonum capitatum[1], has inhibitory effect on the aryl hydrocarbon receptor (AhR)[2]. Brevifolincarboxylic acid is an α-glucosidase inhibitor with an IC50 of 323.46 μM[3].

   
   

Phyllanthusiin E

Phyllanthusiin E

C13H8O8 (292.0219168)


   

4-chloro-3,6,8-trihydroxy-1-methylxanthen-9-one

4-chloro-3,6,8-trihydroxy-1-methylxanthen-9-one

C14H9ClO5 (292.01384939999997)


   

9H-Xanthen-9-one, 2-chloro-1,3,6-trihydroxy-8-methyl-

9H-Xanthen-9-one, 2-chloro-1,3,6-trihydroxy-8-methyl-

C14H9ClO5 (292.01384939999997)


   
   
   

1-Alcohol,Me ester-Aipha-Oxo-5-(1-propynyl)[2,2-bithiophene]-5-acetic acid

1-Alcohol,Me ester-Aipha-Oxo-5-(1-propynyl)[2,2-bithiophene]-5-acetic acid

C14H12O3S2 (292.0227842)


   

2-acetoxy-4-[2,2]bithiophenyl-5-yl-but-3-yn-1-ol|5-(3-acetoxy-4-hydroxy-1-butynyl)-2,2-bithiophene|5-(4-Hydroxy-3-acetoxybutin-1-yl)-bithienyl-2,2

2-acetoxy-4-[2,2]bithiophenyl-5-yl-but-3-yn-1-ol|5-(3-acetoxy-4-hydroxy-1-butynyl)-2,2-bithiophene|5-(4-Hydroxy-3-acetoxybutin-1-yl)-bithienyl-2,2

C14H12O3S2 (292.0227842)


   
   
   
   

4-Chloro-N-[(2-hydroxypropyl)carbamoyl]benzenesulfonamide

4-Chloro-N-[(2-hydroxypropyl)carbamoyl]benzenesulfonamide

C10H13ClN2O4S (292.0284528)


   
   

NSC 652287

5,5-(2,5-furandiyl)bis-2-thiophenemethanol

C14H12O3S2 (292.0227842)


RITA is an inhibitor of p53-HDM-2 interaction, binds to p53dN, with a Kd of 1.5 nM, and also induces DNA-DNA cross-links.

   

3-Hydroxychlorpropamide

4-chloro-3-hydroxy-N-(propylcarbamoyl)benzenesulfonamide

C10H13ClN2O4S (292.0284528)


   

Citreovirone

5,5-dichloro-4-Hydroxy-1-(3-hydroxy-5-methoxyphenyl)-2-pentanone, 9ci

C12H14Cl2O4 (292.0269104)


   

bis(4-isothiocyanatobutyl) disulfide

1-isothiocyanato-4-[(4-isothiocyanatobutyl)disulfanyl]butane

C10H16N2S4 (292.0196296)


   

2-ETHOXY-5-(3-METHYL-UREIDO)-BENZENESULFONYL CHLORIDE

2-ETHOXY-5-(3-METHYL-UREIDO)-BENZENESULFONYL CHLORIDE

C10H13ClN2O4S (292.0284528)


   

ethyl 8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyridine-2-carboxylate

ethyl 8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyridine-2-carboxylate

C11H8ClF3N2O2 (292.02263739999995)


   

2-chloro-N,N-diethyl-5-nitrobenzenesulfonamide

2-chloro-N,N-diethyl-5-nitrobenzenesulfonamide

C10H13ClN2O4S (292.0284528)


   

Ethyl perfluoropentanoate

Ethyl perfluoropentanoate

C7H5F9O2 (292.0145818)


   

1-(4-BROMOPHENYL)-4-1H-IMIDAZOL-1-YL-BUTANONE

1-(4-BROMOPHENYL)-4-1H-IMIDAZOL-1-YL-BUTANONE

C13H13BrN2O (292.0211188)


   

6-BROMO-N-(4-METHOXYBENZYL)PYRIDIN-2-AMINE

6-BROMO-N-(4-METHOXYBENZYL)PYRIDIN-2-AMINE

C13H13BrN2O (292.0211188)


   

ETHYL [2-METHYL-3-(CHLOROSULFONYL)PHENOXY]ACETATE

ETHYL [2-METHYL-3-(CHLOROSULFONYL)PHENOXY]ACETATE

C11H13ClO5S (292.0172198)


   

(7-CHLOROTHIAZOLO[5,4-D]PYRIMIDIN-2-YL)-(4-METHOXYPHENYL)AMINE

(7-CHLOROTHIAZOLO[5,4-D]PYRIMIDIN-2-YL)-(4-METHOXYPHENYL)AMINE

C12H9ClN4OS (292.0185574)


   

2-((4-CHLORO-2-NITROPHENYL)AMINO)BENZOIC ACID

2-((4-CHLORO-2-NITROPHENYL)AMINO)BENZOIC ACID

C13H9ClN2O4 (292.0250824)


   

3,5-Bis(Trifluoromethyl)Benzamidine Hydrochloride

3,5-Bis(Trifluoromethyl)Benzamidine Hydrochloride

C9H7ClF6N2 (292.0201924)


   

4-Hydroperoxycyclophosphamide

4-Hydroperoxy cyclophosphamide

C7H15Cl2N2O4P (292.014646)


A phosphorodiamide that is the active metabolite of the nitrogen mustard cyclophosphamide. It has potent antineoplastic and immunosuppressive properties. D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards

   

4-nitro-5-piperazin-1-ylthiophene-2-sulfonamide

4-nitro-5-piperazin-1-ylthiophene-2-sulfonamide

C8H12N4O4S2 (292.0299952)


   

2H-1,3,2-Oxazaphosphorin-2-amine,N,3-bis(2-chloroethyl)tetrahydro-4-hydroperoxy-, 2-oxide

2H-1,3,2-Oxazaphosphorin-2-amine,N,3-bis(2-chloroethyl)tetrahydro-4-hydroperoxy-, 2-oxide

C7H15Cl2N2O4P (292.014646)


   

ETHYL 5-CHLORO-2-METHYL-4-SULFAMOYLPHENYLCARBAMATE

ETHYL 5-CHLORO-2-METHYL-4-SULFAMOYLPHENYLCARBAMATE

C10H13ClN2O4S (292.0284528)


   

(2,3,4,5,6-pentafluorophenyl) 2-methylpyrazole-3-carboxylate

(2,3,4,5,6-pentafluorophenyl) 2-methylpyrazole-3-carboxylate

C11H5F5N2O2 (292.027117)


   

4-PROPYL-4-BROMO-3-FLUOROBIPHENYL

4-PROPYL-4-BROMO-3-FLUOROBIPHENYL

C15H14BrF (292.0262836)


   

2-(4-AMINO-3-CHLORO-PHENYL)-4-CHLORO-3H-BENZOIMIDAZOL-5-YLAMINE

2-(4-AMINO-3-CHLORO-PHENYL)-4-CHLORO-3H-BENZOIMIDAZOL-5-YLAMINE

C13H10Cl2N4 (292.028248)


   

dimethyl 3-(4-chlorophenoxy)-2-oxopropylphosphonate

dimethyl 3-(4-chlorophenoxy)-2-oxopropylphosphonate

C11H14ClO5P (292.0267354)


   
   

2-Chloro-N-(4-hydroxyphenyl)-5-nitrobenzamide

2-Chloro-N-(4-hydroxyphenyl)-5-nitrobenzamide

C13H9ClN2O4 (292.0250824)


   

4-chloro-n,n-diethyl-3-nitrobenzenesulfonamide

4-chloro-n,n-diethyl-3-nitrobenzenesulfonamide

C10H13ClN2O4S (292.0284528)


   

Dimethyl [3-(3-chlorophenoxy)-2-oxopropyl]phosphonate

Dimethyl [3-(3-chlorophenoxy)-2-oxopropyl]phosphonate

C11H14ClO5P (292.0267354)


   

2-DIAZO-1-NAPHTHOL-5-SULFONIC ACID SOD&

2-DIAZO-1-NAPHTHOL-5-SULFONIC ACID SOD&

C10H9N2NaO5S (292.0129864)


   

1 1-BIS(PHENYLPHOSPHINIDENE)FERROCENE

1 1-BIS(PHENYLPHOSPHINIDENE)FERROCENE

C16H13FeP (292.0104218)


   

ethyl 6-chloro-2-(trifluoroMethyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylate

ethyl 6-chloro-2-(trifluoroMethyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylate

C11H8ClF3N2O2 (292.02263739999995)


   

(3,5-Dichloro-2,4,6-trihydroxyphenyl)hexan-1-one

(3,5-Dichloro-2,4,6-trihydroxyphenyl)hexan-1-one

C12H14Cl2O4 (292.0269104)


An aromatic ketone that is phloroglucinol in which two of the hydrogens attached to the benzene ring have been replaced by chlorines while the third has been replaced by a hexanoyl group. It is the immediate biosynthetic precursor for differentiation-inducing factor 1 (DIF-1). DIF-1 is released by developing Dictyostelium amoebae, inducing them to differentiate into stalk cells.

   

2-Chloro-3,6,8-trihydroxy-1-methyl-9H-xanthen-9-one

2-Chloro-3,6,8-trihydroxy-1-methyl-9H-xanthen-9-one

C14H9ClO5 (292.01384939999997)


   

1-(3,5-Dichloro-2,6-dihydroxy-4-methoxyphenyl)pentan-1-one

1-(3,5-Dichloro-2,6-dihydroxy-4-methoxyphenyl)pentan-1-one

C12H14Cl2O4 (292.0269104)


A differentiation-inducing factor that is pentaphenone bearing two chloro substituents at positions 3 and 5, two hydroxy substituents at positions 2 and 6 as well as a single methoxy substituent at position 4. A secreted, chlorinated molecule that controls cell fate during development of Dictyostelium cells.

   

2-chloro-N-(pyrimidin-2-ylcarbamothioyl)benzamide

2-chloro-N-(pyrimidin-2-ylcarbamothioyl)benzamide

C12H9ClN4OS (292.0185574)


   

2-{5-[2-(Phenylthio)acetyl]-2-thienyl}acetic acid

2-{5-[2-(Phenylthio)acetyl]-2-thienyl}acetic acid

C14H12O3S2 (292.0227842)


   

Perfosfamide

Perfosfamide

C7H15Cl2N2O4P (292.014646)


D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent

   

Pergamid (TN)

Pergamid (TN)

C7H15Cl2N2O4P (292.014646)


D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards

   

RITA (NSC 652287)

[5-[5-[5-(Hydroxymethyl)thiophen-2-yl]furan-2-yl]thiophen-2-yl]methanol

C14H12O3S2 (292.0227842)


RITA is an inhibitor of p53-HDM-2 interaction, binds to p53dN, with a Kd of 1.5 nM, and also induces DNA-DNA cross-links.

   

1-(4-Chlorophenyl)sulfonyl-3-(3-hydroxypropyl)urea

1-(4-Chlorophenyl)sulfonyl-3-(3-hydroxypropyl)urea

C10H13ClN2O4S (292.0284528)


   

Methyl 2-hydroxy-3-(4-hydroxy-3-sulooxyphenyl)propanoate

Methyl 2-hydroxy-3-(4-hydroxy-3-sulooxyphenyl)propanoate

C10H12O8S (292.02528720000004)


   

2-Hydroxy-3-(4-methoxy-3-sulooxyphenyl)propanoic acid

2-Hydroxy-3-(4-methoxy-3-sulooxyphenyl)propanoic acid

C10H12O8S (292.02528720000004)


   

3-(3-Hydroxy-5-methoxy-4-sulooxyphenyl)propanoic acid

3-(3-Hydroxy-5-methoxy-4-sulooxyphenyl)propanoic acid

C10H12O8S (292.02528720000004)


   

2-Hydroxy-3-(3-methoxy-4-sulooxyphenyl)propanoic acid

2-Hydroxy-3-(3-methoxy-4-sulooxyphenyl)propanoic acid

C10H12O8S (292.02528720000004)


   

Methyl 3-(3,4-dihydroxyphenyl)-2-sulooxypropanoate

Methyl 3-(3,4-dihydroxyphenyl)-2-sulooxypropanoate

C10H12O8S (292.02528720000004)


   

2-(2-Hydroxy-4-methoxy-3-sulooxyphenyl)propanoic acid

2-(2-Hydroxy-4-methoxy-3-sulooxyphenyl)propanoic acid

C10H12O8S (292.02528720000004)


   

Carboxyphosphamide

Carboxyphosphamide

C7H15Cl2N2O4P (292.014646)


D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards

   

Carboxyifosfamide

Carboxyifosfamide

C7H15Cl2N2O4P (292.014646)


D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D009588 - Nitrogen Mustard Compounds D000970 - Antineoplastic Agents > D018906 - Antineoplastic Agents, Alkylating > D010752 - Phosphoramide Mustards

   

1-(4-Chloro-2-hydroxyphenyl)sulfonyl-3-propylurea

1-(4-Chloro-2-hydroxyphenyl)sulfonyl-3-propylurea

C10H13ClN2O4S (292.0284528)


   

(5r)-6,7,8-trihydroxy-1,3-dioxo-2h,5h-cyclopenta[c]isochromene-5-carboxylic acid

(5r)-6,7,8-trihydroxy-1,3-dioxo-2h,5h-cyclopenta[c]isochromene-5-carboxylic acid

C13H8O8 (292.0219168)


   

6,7,8-trihydroxy-1,3-dioxo-2h,5h-cyclopenta[c]isochromene-5-carboxylic acid

6,7,8-trihydroxy-1,3-dioxo-2h,5h-cyclopenta[c]isochromene-5-carboxylic acid

C13H8O8 (292.0219168)


   

2-chloro-3,7,9-trihydroxy-1-methylbenzo[c]chromen-6-one

2-chloro-3,7,9-trihydroxy-1-methylbenzo[c]chromen-6-one

C14H9ClO5 (292.01384939999997)


   

1-(3,5-dichloro-2,4,6-trihydroxyphenyl)hexan-1-one

1-(3,5-dichloro-2,4,6-trihydroxyphenyl)hexan-1-one

C12H14Cl2O4 (292.0269104)


   

(2r)-7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-2-carboxylic acid

(2r)-7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-2-carboxylic acid

C13H8O8 (292.0219168)


   

4-chloro-1,3,6-trihydroxy-8-methylxanthen-9-one

4-chloro-1,3,6-trihydroxy-8-methylxanthen-9-one

C14H9ClO5 (292.01384939999997)


   

(1s)-7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-1-carboxylic acid

(1s)-7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-1-carboxylic acid

C13H8O8 (292.0219168)


   

4-{[2,2'-bithiophen]-5-yl}-2-hydroxybut-3-yn-1-yl acetate

4-{[2,2'-bithiophen]-5-yl}-2-hydroxybut-3-yn-1-yl acetate

C14H12O3S2 (292.0227842)


   

(1r)-7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-1-carboxylic acid

(1r)-7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-1-carboxylic acid

C13H8O8 (292.0219168)


   

{11,12-dihydroxy-3,8-dioxo-2,7-dioxatricyclo[7.3.1.0⁵,¹³]trideca-1(12),4,9(13),10-tetraen-4-yl}acetic acid

{11,12-dihydroxy-3,8-dioxo-2,7-dioxatricyclo[7.3.1.0⁵,¹³]trideca-1(12),4,9(13),10-tetraen-4-yl}acetic acid

C13H8O8 (292.0219168)


   

7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-2-carboxylic acid

7,8,9-trihydroxy-3,5-dioxo-1h,2h-cyclopenta[c]isochromene-2-carboxylic acid

C13H8O8 (292.0219168)