Exact Mass: 263.9877138

Exact Mass Matches: 263.9877138

Found 303 metabolites which its exact mass value is equals to given mass value 263.9877138, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Ethidimuron

C7H12N4O3S2 (264.0350802)

3-Methoxy-4-Hydroxyphenylglycol sulfate

[2-Hydroxy-1-(4-hydroxy-3-methoxyphenyl)ethoxy]sulphonic acid

C9H12O7S (264.0303722)

3-Methoxy-4-Hydroxyphenylglycol sulfate, also known as (3-methoxy-4-sulfonyloxyphenyl)glycol or MHPG-sulfate, belongs to the class of organic compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. 3-Methoxy-4-Hydroxyphenylglycol sulfate is a member of phenols and an alcohol. A sulfated metabolite of brain norepinephrine. It is formed by phenolsulphotransferase acting on 3-methoxy-4-hydroxphenylglycol (MHPG). [HMDB]

5,8-Dihydro-6-(4-methyl-3-pentenyl)-1,2,3,4-tetrathiocin

6-(4-methylpent-3-en-1-yl)-5,8-dihydro-1,2,3,4-tetrathiocine

C10H16S4 (264.0134816)

5,8-Dihydro-6-(4-methyl-3-pentenyl)-1,2,3,4-tetrathiocin is found in alcoholic beverages. 5,8-Dihydro-6-(4-methyl-3-pentenyl)-1,2,3,4-tetrathiocin is a constituent of hops. Constituent of hops. 5,8-Dihydro-6-(4-methyl-3-pentenyl)-1,2,3,4-tetrathiocin is found in alcoholic beverages.

3-Methoxy-4-hydroxyphenylethyleneglycol sulfate

[4-(1,2-Dihydroxyethyl)-2-methoxyphenyl]oxidanesulphonic acid

C9H12O7S (264.0303722)

3-Methoxy-4-hydroxyphenylethyleneglycol sulfate (MHPG-SO4) is the major metabolite of noradrenaline in serum. Chronic schizophrenics have lower serum levels than healthy individuals. Treatment of both groups with 7 daily 3-mg doses of haloperidol caused similar decreases in MHPG-SO4 concentration (PMID: 7343757). In human urine, MHPG-SO4 constitutes 44\\% of the total 3-methoxy-4-hydroxyphenylethylene glycol (PMID: 7379456). 3-methoxy-4-hydroxyphenylethyleneglycol sulfate (MHPG-SO4) is the major metabolite of noradrenaline in serum. Chronic schizophrenics have lower serum levels than healthy individuals. Treatment of both groups with 7 daily 3-mg doses of Haloperidol caused similar decreases in MHPG-SO4 concentration. (PMID 7343757)

2,3,5,7,9-Pentathiadecane 2,2-dioxide

Methanesulphonyl[({[(methyldisulphanyl)methyl]sulphanyl}methyl)sulphanyl]methane

C5H12O2S5 (263.9440852)

2,3,5,7,9-Pentathiadecane 2,2-dioxide is found in mushrooms. 2,3,5,7,9-Pentathiadecane 2,2-dioxide is isolated from the shiitake mushroom (Lentinus edodes). Isolated from the shiitake mushroom (Lentinus edodes). 2,3,5,7,9-Pentathiadecane 2,2-dioxide is found in mushrooms.

Methylgallic acid-O-sulphate

(3,4,5-Trihydroxy-2-methylbenzoyloxy)sulphonic acid

C8H8O8S (263.9939888)

Methylgallic acid-O-sulphate is a conjugate of methylgallic acid and sulphate. methylgallic acid is a methyl ester of gallic acid. Gallic acid is a trihydroxybenzoic acid, a type of phenolic acid, a type of organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. The chemical formula is C6H2(OH)3COOH. Gallic acid is found both free and as part of hydrolyzable tannins. (Wikipedia)

Thioxanthine monophosphate

[(2-hydroxy-6-sulfanyl-9H-purin-9-yl)oxy]phosphonic acid

C5H5N4O5PS (263.971829)

Thioxanthine monophosphate is a metabolite of azathioprine. Azathioprine is a purine analogue immunosuppressive drug. It is used to prevent rejection following organ transplantation, and to treat a vast array of autoimmune diseases, including rheumatoid arthritis, pemphigus, inflammatory bowel disease, multiple sclerosis, autoimmune hepatitis, atopic dermatitis, myasthenia gravis, neuromyelitis optica or Devics disease, restrictive lung disease, and others. (Wikipedia)

4-Methylgallic acid 3-sulfate

3-Hydroxy-4-methoxy-5-(sulfooxy)benzoic acid

C8H8O8S (263.9939888)

4-o-methylgallic acid 3-o-sulphate belongs to gallic acid and derivatives class of compounds. Those are compounds containing a 3,4,5-trihydroxybenzoic acid moiety. 4-o-methylgallic acid 3-o-sulphate is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa).

n-Heptafluorobutyrylimidazole

2,2,3,3,4,4,4-heptafluoro-1-(1H-imidazol-1-yl)butan-1-one

C7H3F7N2O (264.0133592)

Perfluorovaleric acid

2,2,3,3,4,4,5,5,5-Nonafluoropentanoic acid

C5HF9O2 (263.98328339999995)

Raluridine

5-chloro-1-[4-fluoro-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione

C9H10ClFN2O4 (264.0313102)

Arctinol

1-{5-[5-(prop-1-yn-1-yl)thiophen-2-yl]thiophen-2-yl}ethane-1,2-diol

C13H12O2S2 (264.0278692)

Arctinol b is a member of the class of compounds known as bi- and oligothiophenes. Bi- and oligothiophenes are organic compounds containing two or more linked thiophene rings. Thiophene is a five-member aromatic ring with one sulfur and four carbon atoms. Arctinol b is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Arctinol b can be found in burdock, which makes arctinol b a potential biomarker for the consumption of this food product.

2-(2-carboxy-4-methylthiazol-5-yl)ethyl phosphate

4-methyl-5-[2-(phosphonatooxy)ethyl]-1,3-thiazole-2-carboxylate

C7H7NO6PS (263.9731712)

2-(2-carboxy-4-methylthiazol-5-yl)ethyl phosphate, also known as cthz-P, belongs to thiazolecarboxylic acids and derivatives class of compounds. Those are heterocyclic compounds containing a thiazole ring which bears a carboxylic acid group (or a derivative thereof). 2-(2-carboxy-4-methylthiazol-5-yl)ethyl phosphate is soluble (in water) and a moderately acidic compound (based on its pKa). 2-(2-carboxy-4-methylthiazol-5-yl)ethyl phosphate can be found in a number of food items such as rubus (blackberry, raspberry), triticale, fenugreek, and cloudberry, which makes 2-(2-carboxy-4-methylthiazol-5-yl)ethyl phosphate a potential biomarker for the consumption of these food products.

Pantoisofuranoid A

(-)-Pantoisofuranoid A

C10H17BrO3 (264.03609919999997)

Pantoisofuranoid B

(-)-Pantoisofuranoid B

C10H17BrO3 (264.03609919999997)

Pantoisofuranoid C

C10H17BrO3 (264.03609919999997)

Perfluoropentanoic acid

C5HF9O2 (263.98328339999995)

Maybridge3_003787

C12H9ClN2OS (264.01240939999997)

Purpurogallincarboxylic acid

C12H8O7 (264.0270018)

C10H17BrO3

C10H17BrO3 (264.03609919999997)

3-(1-hydroxybutyl)-4-bromo-5-hydroxy-5-methyl-2(5h)-furanone

C9H13BrO4 (263.9997158)

(+)-Cryptosporiopsin|3-Chloro, Me ester-(1S, 5S, E)-5-Chloro-1-hydroxy-4-oxo-2-(2-propenyl)-2-cyclopentene-1-carboxylic acid

C10H10Cl2O4 (263.99561200000005)

2.3.7-Trihydroxy-6-acetyl-juglon|6-Acetyl-2,3,5,7-tetrahydroxy-1,4-naphthochinon

C12H8O7 (264.0270018)

(2R,3(8)E,4S,6R*)-6-bromo-2-chloro-1,4-oxido-3(8)-ochtodene

(2R*,3(8)E,4S*,6R*)-6-bromo-2-chloro-1,4-oxido-3(8)-ochtodene

C10H14BrClO (263.99164840000003)

3-Acetyl-2,5,6,7-tetrahydroxy-1,4-naphthochinon, Spinochrom S|3-Acetyl-2,5,6,7-tetrahydroxy-1,4-naphthoquinone|3-Acetyl-2,6,7-trihydroxy-juglon

C12H8O7 (264.0270018)

Fumigatin-bromhydrin

C8H9BrO5 (263.9633324)

Spinochrome A

C12H8O7 (264.0270018)

6-formyl-7,8-dihydroxy-1-oxo-1H-isochromene-3-carboxylic acid methyl ester

C12H8O7 (264.0270018)

Methanesulfonic acid, thio-, S-[[[[(methylsulfinyl)methyl]thio]methoxy]methyl] ester

C5H12O4S4 (263.9618432)

2-(3,4-dihydroxybut-1-inyl)-5-methyldithiophene|2-<3,4-dihydroxybut-1-inyl>-5-methyldithiophene

C13H12O2S2 (264.0278692)

Actinol B

C13H12O2S2 (264.0278692)

4-bromo-8-chloro-3,7-dimethylocta-2,6-dienal

C10H14BrClO (263.99164840000003)

Makaluvamine O

C10H5BrN2O2 (263.953437)

arctinol b|arctinol-b

C13H12O2S2 (264.0278692)

Purpurogallin carboxylic acid

InChI=1/C12H8O7/c13-6-3-5(12(18)19)1-4-2-7(14)10(16)11(17)8(4)9(6)15/h1-3,14,16-17H,(H,13,15)(H,18,19)

C12H8O7 (264.0270018)

Perfluorovaleric acid

Perfluoropentanoic acid (PFPeA)

C5HF9O2 (263.98328339999995)

CONFIDENCE standard compound; INTERNAL_ID 5945 CONFIDENCE standard compound; EAWAG_UCHEM_ID 2714

3-methoxy-4-hydroxyphenylglycol sulfate

C9H12O7S (264.0303722)

PURPUROGALLIN-4-CARBOXYLIC ACID

C12H8O7 (264.0270018)

PURPUROGALLIN-4-CARBOXYLIC ACID_major

C12H8O7 (264.0270018)

(3-Methoxy-4-hydroxyphenyl)ethylene glycol sulfate

C9H12O7S (264.0303722)

1-Methylnicotinamide iodide

Pyridinium,3-(aminocarbonyl)-1-methyl-, iodide (1:1)

C7H9IN2O (263.9759614)

1-Methylnicotinamide iodide is an intermediate in the metabolism of Nicotinate and nicotinamide. It is a substrate for Aldehyde oxidase and Nicotinamide N-methyltransferase. [HMDB]

6-(4-Methyl-3-pentenyl)-1,2,3,4-tetrathia-6-cyclooctene

6-(4-methylpent-3-en-1-yl)-5,8-dihydro-1,2,3,4-tetrathiocine

C10H16S4 (264.0134816)

SE-3

methanesulfonyl[({[(methyldisulfanyl)methyl]sulfanyl}methyl)sulfanyl]methane

C5H12O2S5 (263.9440852)

5-BROMO-NAPHTHALENE-1-CARBOXYLIC ACID METHYL ESTER

C12H9BrO2 (263.9785874)

1-(4-BROMOPHENYL)-2-(1H-IMIDAZOL-1-YL)-1-ETHANONE

C11H9BrN2O (263.9898204)

4-Iodo-1-methyl-2-(2-methyl-2-propanyl)-1H-imidazole

C8H13IN2 (264.0123448)

Methyl 4-bromo-2-naphthoate

C12H9BrO2 (263.9785874)

heptafluorobutyrylimidazole

n-Heptafluorobutyrylimidazole

C7H3F7N2O (264.0133592)

2-Naphthalenol,6-bromo-, 2-acetate

C12H9BrO2 (263.9785874)

1,2,8,9-tetrachlorononane

C9H16Cl4 (264.00060560000003)

2-[(2-Chloro-4-nitrophenoxy)methyl]pyridine

C12H9ClN2O3 (264.0301674)

3-SULFOBENZOIC ACID DISODIUM SALT MONOHYDRATE

C7H6Na2O6S (263.96804960000003)

1-Iodo-3,5-dimethoxybenzene

C8H9IO2 (263.9647284)

5-BROMO-2-(P-TOLYLOXY)PYRIMIDINE

C11H9BrN2O (263.9898204)

2-[(2-CHLORO-6-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

N-(5-bromoquinolin-8-yl)acetamide

C11H9BrN2O (263.9898204)

3-BROMO-4-(1H-IMIDAZOL-1-YL)ACETOPHENONE

C11H9BrN2O (263.9898204)

5-CHLORO-1-(4-TRIFLUOROMETHOXY-PHENYL)-1H-TETRAZOLE

C8H4ClF3N4O (264.002572)

4-(2-BROMOETHYL)BENZENESULFONIC ACID

C8H9BrO3S (263.9455744)

2-BROMO-4-(METHYLSULFONYL)PHENYL]HYDRAZINE

C7H9BrN2O2S (263.9568074)

3,5-BIS(METHYLSULFONYL)PHENYL]METHANOL

C9H12O5S2 (264.0126142)

2,6-Difluoro-3-(propylsulfonyl)benzoic acid

C10H10F2O4S (264.0267844)

4-(2-chloro-6-fluorobenzyloxy)benzaldehyde

C14H10ClFO2 (264.03533219999997)

1-TRIFLUOROACETYL-5-FLUOROBENZIMIDAZOLIN-2-THIONE

C9H4F4N2OS (263.9980462)

3-[(2-CHLORO-4-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

4-[(2-CHLORO-4-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

Methanesulfonamide,N,N-1,2-phenylenebis-

C8H12N2O4S2 (264.0238472)

3-(4-methoxyphenoxy)-1-propanesulfonyl

C10H13ClO4S (264.02230480000003)

1-(2,5-DICHLOROPYRIMIDIN-4-YL)-1H-BENZO[D]IMIDAZOLE

C11H6Cl2N4 (263.9969496)

3-(2,5-Dichloropyrimidin-4-yl)imidazo[1,2-a]pyridine

C11H6Cl2N4 (263.9969496)

ETHYL 4-BROMO-3,5-DIMETHYL-1H-PYRROLE-2-CARBOXYLATE

C11H9BrN2O (263.9898204)

5-CHLORO-2-[(2-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

4-Iodo-3-nitroaniline

C6H5IN2O2 (263.939578)

3,6-DIACETOXYPHTHALIC ACID ANHYDRIDE

C12H8O7 (264.0270018)

5-bromo-2-(3-methylphenoxy)pyrimidine

C11H9BrN2O (263.9898204)

2-[(2-CHLORO-4-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

3-IODO-4-METHOXYBENZYL ALCOHOL

C8H9IO2 (263.9647284)

4-(BROMOMETHYL)-4-FLUORO-1,1-BIPHENYL

C13H10BrF (263.9949852)

3-CHLORO-2-FLUORO-4-METHYL-[1,1-BIPHENYL]-4-CARBOXYLIC ACID

C14H10ClFO2 (264.03533219999997)

3-Iodo-6-isopropoxypyridazine

C7H9IN2O (263.9759614)

3-CHLORO-3-FLUORO-4-METHOXYBENZOPHENONE

C14H10ClFO2 (264.03533219999997)

diphenyl chloroarsine

C12H10AsCl (263.968695)

2-bromo-6-(2,5-dimethylpyrrol-1-yl)-4-methylpyridine

C12H13BrN2 (264.0262038)

5-CHLORO-2-[(3-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

5-CHLORO-2-[(4-FLUOROBENZYL)OXY]BENZALDEHYDE

C14H10ClFO2 (264.03533219999997)

(3AS)-7-BROMO-3A 4 5 7A-TETRAHYDRO-2 2-&

C9H13BrO4 (263.9997158)

METHYL 3-(CHLOROSULFONYL)-4-METHOXYBENZOATE

C9H9ClO5S (263.98592140000005)

4-Iodo-1,2-dimethoxybenzene

C8H9IO2 (263.9647284)

8-FLUORO-4H-(1)-BENZOPYRANO(4 3-B)THIOP&

C12H9FN2O2S (264.0368746)

2-BROMOPHENYLSULFONYLETHANOL

C8H9BrO3S (263.9455744)

2,2,2-TRIFLUOROETHYL 3-NITROPHENYLCARBAMATE

C9H7F3N2O4 (264.03578980000003)

2-(3-bromophenoxy)-6-methylpyrazine

C11H9BrN2O (263.9898204)

1,3,5-Trimethyl-2,4,6-tris(chloromethyl)benzene

C12H15Cl3 (264.023928)

5-Bromo-N-ethylpyridine-3-sulfonamide

C7H9BrN2O2S (263.9568074)

Arctinol b

UNII:E263X00IUY

C13H12O2S2 (264.0278692)

Mercurous Nitrate

HgNO3 (263.95845099999997)

Kathon 886

C8H9ClN2O2S2 (263.97939640000004)

2-NITRO-4-(TRIFLUOROMETHOXY)ACETANILIDE

C9H7F3N2O4 (264.03578980000003)

6-(4-bromophenoxy)pyridin-3-amine

C11H9BrN2O (263.9898204)

1,1,3,3,4,5,6,7-OCTAFLUORO-1,3-DIHYDRO-ISOBENZOFURAN

C8F8O (263.9821406)

4-[(4,6-Dichloropyrimidin-2-yl)amino]benzonitrile

C11H6Cl2N4 (263.9969496)

5-Bromo-N,N-dimethylpyridine-3-sulfonamide

C7H9BrN2O2S (263.9568074)

1-(4-(BROMOMETHYL)PHENYL)-3,5-DIMETHYL-1H-PYRAZOLE

C12H13BrN2 (264.0262038)

2-bromo-1-(1-phenylpyrazol-4-yl)ethanone

C11H9BrN2O (263.9898204)

2-(6-Bromonaphthalen-2-yl)acetic acid

C12H9BrO2 (263.9785874)

Ethyl 5-bromo-2,3-difluorobenzoate

C9H7BrF2O2 (263.9597446)

4,6-dichloro-1-phenylpyrazolo[3,4-d]pyrimidine

C11H6Cl2N4 (263.9969496)

Chloralodol

2-methyl-4-(2,2,2-trichloro-1-hydroxyethoxy)pentan-2-ol

C8H15Cl3O3 (264.00867300000004)

N - Nervous system > N05 - Psycholeptics > N05C - Hypnotics and sedatives > N05CC - Aldehydes and derivatives C78272 - Agent Affecting Nervous System > C29756 - Sedative and Hypnotic

Methyl 5-bromo-2-naphthoate

C12H9BrO2 (263.9785874)

5-(2-chloro-4-nitrophenoxy)-2-methylpyridine

C12H9ClN2O3 (264.0301674)

Benzoic acid,2-[(4-chlorophenyl)thio]-

C13H9ClO2S (264.0011764)

[5-(hydroxymethyl)-2-(trichloromethyl)-1,3-dioxan-5-yl]methanol

C7H11Cl3O4 (263.9722896)

4-bromo-6-(trifluoromethyl)benzimidazole

C8H4BrF3N2 (263.950992)

4-Bromophenyl phenyl sulfide

C12H9BrS (263.9608294)

Methyl 6-bromo-2-naphthoate

C12H9BrO2 (263.9785874)

Methyl [4-(chlorosulfonyl)phenoxy]acetate

C9H9ClO5S (263.98592140000005)

tin (ii) octoate

C8H16O2Sn (264.01722259999997)

2-BROMO-1-[4-(2-FURYL)PHENYL]ETHANONE

C12H9BrO2 (263.9785874)

4-Bromo-6-(trifluoromethyl)-1H-indazole

C8H4BrF3N2 (263.950992)

2-[(3,4-Difluorophenyl)sulfonyl]acetic acid ethyl ester

C10H10F2O4S (264.0267844)

Pralidoxime Iodide

C7H9IN2O (263.9759614)

D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D002801 - Cholinesterase Reactivators C78272 - Agent Affecting Nervous System > C47796 - Cholinergic Agonist D020011 - Protective Agents > D000931 - Antidotes D004793 - Enzyme Reactivators

5-CHLORO-2-(TRIFLUOROMETHOXY)BENZOTRIFLUORIDE

C8H3ClF6O (263.977661)

4-Iodo-2-nitroaniline

C6H5IN2O2 (263.939578)

Methyl 3-bromo-1-naphthoate

C12H9BrO2 (263.9785874)

3-bromo-4-methoxybenzenecarboximidamide,hydrochloride

C8H10BrClN2O (263.966498)

2-chloro-2,2-diphenylacetyl chloride

C14H10Cl2O (264.010867)

2-Iodo-5-nitroaniline

C6H5IN2O2 (263.939578)

Silicon tetraacetate

C8H12O8Si (264.0301432)

3,3,4,4,5,5,6,6,6-Nonafluoro-1-hexanol

1-Hexanol, 3,3,4,4,5,5,6,6,6-nonafluoro-

C6H5F9O (264.0196668)

Oxirane,2,3-bis(2-chlorophenyl)-

C14H10Cl2O (264.010867)

Phosphinous bromide,P,P-diphenyl-

C12H10BrP (263.970345)

Imidazo[1,2-a]pyridine, 6-bromo-2-(trifluoromethyl)-

C8H4BrF3N2 (263.950992)

Methyl 4-bromo-3-methoxy-5-methylthiophene-2-carboxylate

C8H9BrO3S (263.9455744)

2,4-Dichloro-5-(2-methoxyethoxy)phenylboronic acid

C9H11BCl2O4 (264.0127416)

4,5-Dichloro-2-(2-methoxyethoxy)phenylboronic acid

C9H11BCl2O4 (264.0127416)

4-Bromo-1-chloro-2-(2-methoxyethoxy)benzene

C9H10BrClO2 (263.955265)

5-Bromo-3-(trifluoromethyl)-1H-indazole

C8H4BrF3N2 (263.950992)

1-[4-(4-Chloro-2-fluorophenoxy)phenyl]ethanone

C14H10ClFO2 (264.03533219999997)

1,6-NAPHTHYRIDINE-3-CARBOXYLIC ACID, 7-CHLORO-1-CYCLOPROPYL-1,4-DIHYDRO-4-OXO-

C12H9ClN2O3 (264.0301674)

Raluridine

5-Chloro-2,3-dideoxy-3-fluoro-uridine

C9H10ClFN2O4 (264.0313102)

C471 - Enzyme Inhibitor > C1589 - Reverse Transcriptase Inhibitor > C97452 - Nucleoside Reverse Transcriptase Inhibitor D009676 - Noxae > D000963 - Antimetabolites > D015224 - Dideoxynucleosides C254 - Anti-Infective Agent > C281 - Antiviral Agent Raluridine is a purine nucleoside analog. Purine nucleoside analogs have broad antitumor activity targeting indolent lymphoid malignancies. Anticancer mechanisms in this process rely on inhibition of DNA synthesis, induction of apoptosis, etc[1].