Exact Mass: 263.97939640000004

Exact Mass Matches: 263.97939640000004

Found 48 metabolites which its exact mass value is equals to given mass value 263.97939640000004, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

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)

   

Perfluorovaleric acid

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

C5HF9O2 (263.98328339999995)


   

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.

   
   

Perfluorovaleric acid

Perfluoropentanoic acid (PFPeA)

C5HF9O2 (263.98328339999995)


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

   

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]

   

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

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

C12H9BrO2 (263.9785874)


   

Methyl 4-bromo-2-naphthoate

Methyl 4-bromo-2-naphthoate

C12H9BrO2 (263.9785874)


   

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

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

C12H9BrO2 (263.9785874)


   

3-Iodo-6-isopropoxypyridazine

3-Iodo-6-isopropoxypyridazine

C7H9IN2O (263.9759614)


   

METHYL 3-(CHLOROSULFONYL)-4-METHOXYBENZOATE

METHYL 3-(CHLOROSULFONYL)-4-METHOXYBENZOATE

C9H9ClO5S (263.98592140000005)


   

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

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

C8F8O (263.9821406)


   

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

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

C12H9BrO2 (263.9785874)


   

Methyl 5-bromo-2-naphthoate

Methyl 5-bromo-2-naphthoate

C12H9BrO2 (263.9785874)


   

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

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

C7H11Cl3O4 (263.9722896)


   

Methyl 6-bromo-2-naphthoate

Methyl 6-bromo-2-naphthoate

C12H9BrO2 (263.9785874)


   

Methyl [4-(chlorosulfonyl)phenoxy]acetate

Methyl [4-(chlorosulfonyl)phenoxy]acetate

C9H9ClO5S (263.98592140000005)


   

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

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

C12H9BrO2 (263.9785874)


   

Pralidoxime Iodide

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

5-CHLORO-2-(TRIFLUOROMETHOXY)BENZOTRIFLUORIDE

C8H3ClF6O (263.977661)


   

Methyl 3-bromo-1-naphthoate

Methyl 3-bromo-1-naphthoate

C12H9BrO2 (263.9785874)


   

Phosphinous bromide,P,P-diphenyl-

Phosphinous bromide,P,P-diphenyl-

C12H10BrP (263.970345)


   

METHYL 4-BROMO-1-NAPHTHOATE

METHYL 4-BROMO-1-NAPHTHOATE

C12H9BrO2 (263.9785874)


   

1,1,1,3,3,3-hexafluoropropan-2-yl 2,2,2-trifluoroacetate

1,1,1,3,3,3-hexafluoropropan-2-yl 2,2,2-trifluoroacetate

C5HF9O2 (263.98328339999995)


   

2-Bromo-1-(1-hydroxynaphthalen-2-yl)ethanone

2-Bromo-1-(1-hydroxynaphthalen-2-yl)ethanone

C12H9BrO2 (263.9785874)


   

3-BROMOTHIOPHENE-2CARBOXALDEHYDE DIETHYL ACETAL

3-BROMOTHIOPHENE-2CARBOXALDEHYDE DIETHYL ACETAL

C9H13BrO2S (263.98195780000003)


   

thallium(I) acetate

thallium(I) acetate

C2H3O2Tl (263.9877138)


   

1-(3,4-DIMETHOXY-BENZYL)-PIPERAZINE

1-(3,4-DIMETHOXY-BENZYL)-PIPERAZINE

C7H9BrN2O4 (263.9745654)


   

4,5,6,7-TETRAFLUORO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID METHYL ESTER

4,5,6,7-TETRAFLUORO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID METHYL ESTER

C10H4F4O2S (263.98681320000003)


   

OCTAFLUOROACETOPHENONE

OCTAFLUOROACETOPHENONE

C8F8O (263.9821406)


   

methyl 1-bromonaphthalene-2-carboxylate

methyl 1-bromonaphthalene-2-carboxylate

C12H9BrO2 (263.9785874)


   

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

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

C12H9BrO2 (263.9785874)


   

6-chloro-7-hydroxy-4-(trifluoromethyl)coumarin

6-chloro-7-hydroxy-4-(trifluoromethyl)coumarin

C10H4ClF3O3 (263.980106)


   

4-(bromomethyl)naphthalene-1-carboxylic acid

4-(bromomethyl)naphthalene-1-carboxylic acid

C12H9BrO2 (263.9785874)


   

2,3,5,6-TETRAFLUORO-4-TRIFLUOROMETHYL-BENZOYL FLUORIDE

2,3,5,6-TETRAFLUORO-4-TRIFLUOROMETHYL-BENZOYL FLUORIDE

C8F8O (263.9821406)


   

Ethyl 4,6-dichloro-5-nitronicotinate

Ethyl 4,6-dichloro-5-nitronicotinate

C8H6Cl2N2O4 (263.9704616)


   

METHYL 2-[(2,6-DICHLOROBENZYL)THIO]ACETATE

METHYL 2-[(2,6-DICHLOROBENZYL)THIO]ACETATE

C10H10Cl2O2S (263.97785400000004)


   

5-chlorosulfonyl-2-ethoxybenzoic acid

5-chlorosulfonyl-2-ethoxybenzoic acid

C9H9ClO5S (263.98592140000005)


   

[3-(chlorosulfonyl)-4-methoxyphenyl]acetic acid(SALTDATA: FREE)

[3-(chlorosulfonyl)-4-methoxyphenyl]acetic acid(SALTDATA: FREE)

C9H9ClO5S (263.98592140000005)


   

POTASSIUM TRIFLUORO(2-(METHYLSULFONYL)PYRIMIDIN-5-YL)BORATE

POTASSIUM TRIFLUORO(2-(METHYLSULFONYL)PYRIMIDIN-5-YL)BORATE

C5H5BF3KN2O2S (263.9753956)


   
   

2-[(2R,5Z)-2-Carboxy-4-methylthiazol-5(2H)-ylidene]ethyl phosphate

2-[(2R,5Z)-2-Carboxy-4-methylthiazol-5(2H)-ylidene]ethyl phosphate

C7H7NO6PS-3 (263.9731712)


   

2-(Hydroxyiminomethyl)-1-methylpyridinium iodide

2-(Hydroxyiminomethyl)-1-methylpyridinium iodide

C7H9IN2O (263.9759614)


   

4-Methyl-5-[2-(phosphonatooxy)ethylidene]-2,5-dihydro-1,3-thiazole-2-carboxylate

4-Methyl-5-[2-(phosphonatooxy)ethylidene]-2,5-dihydro-1,3-thiazole-2-carboxylate

C7H7NO6PS-3 (263.9731712)


   

2,2,3,4,4,4-Hexafluoro-3-(trifluoromethyl)butanoic acid

2,2,3,4,4,4-Hexafluoro-3-(trifluoromethyl)butanoic acid

C5HF9O2 (263.98328339999995)


   

Thioxanthine monophosphate

Thioxanthine monophosphate

C5H5N4O5PS (263.971829)


   

(R,Z)- 2-carboxylato-4-methyl-5-[(2-phosphonatooxy)ethylidene]-2,5-dihydrothiazole(3-)

(R,Z)- 2-carboxylato-4-methyl-5-[(2-phosphonatooxy)ethylidene]-2,5-dihydrothiazole(3-)

C7H7NO6PS (263.9731712)


The organophosphate oxoanion that is the 2R,5Z isomer of 2-carboxylato-4-methyl-5-[(2-phosphonatooxy)ethylidene]-2,5-dihydrothiazole(3-); protonated to pH 7.3.