Exact Mass: 139.0445

Exact Mass Matches: 139.0445

Found 145 metabolites which its exact mass value is equals to given mass value 139.0445, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

2-Methylaminoethylphosphonate

N-Monomethyl-2-aminoethylphosphonate

C3H10NO3P (139.0398)

Glycine ethyl ester hydrochloride

C4H10ClNO2 (139.04)

5-Hydroxypyrazinamide

5-oxo-4,5-Dihydropyrazine-2-carboximidate

C5H5N3O2 (139.0382)

Pyrazinamide. Pyrazinamide is a drug used to treat tuberculosis in afflicted patients. The drug is largely bacteriostatic, but can be bacteriocidal on actively replicating tuberculosis bacteria. -- Wikipedia; Pyrazinamide is a generic drug and is available in a wide variety of presentations. Pyrazinamide tablets are usually 500mg and form the bulkiest part of the standard tuberculosis treatment regimen. Pyrazinamide tablets are so large that some patients find them impossible to swallow: pyrazinamide syrup is an option for these patients. -- Wikipedia; Pyrazinamide is also available as part of fixed dose combinations with other TB drugs such as isoniazid and rifampicin (Rifater is an example). -- Wikipedia; Pyrazinamide is well absorbed orally. It crosses inflamed meninges and is an essential part of the treatment of tuberculous meningitis. It is metabolised by the liver and the metabolic products are excreted by the kidneys. -- Wikipedia; Pyrazinamide is a pro-drug that stops the growth of Mycobacterium tuberculosis. M. tuberculosis has the enzyme pyrazinamidase which is only active at acidic pH. Pyrazinamidase converts pyrazinamide to the active form, pyrazinoic acid. Pyrazinoic acid inhibits the enzyme fatty acid synthetase I, which is required by the bacterium to synthesise fatty acids. Mutations of the pyrazinamidase gene (pncA) are responsible for pyrazinamide resistance in M. tuberculosis. -- Wikipedia. Pyrazinamide

2,4-Dimethyl-5-vinylthiazole

5-ethenyl-2,4-dimethyl-1,3-thiazole

C7H9NS (139.0456)

2,4-Dimethyl-5-vinylthiazole is found in animal foods. 2,4-Dimethyl-5-vinylthiazole is present in cooked beef volatiles. 2,4-Dimethyl-5-vinylthiazole is a flavouring ingredient. Present in cooked beef volatiles. Flavouring ingredient. 2,4-Dimethyl-5-vinylthiazole is found in animal foods.

3-Aminopropylphosphonic acid

Aminopropylphosphonate, sodium salt

C3H10NO3P (139.0398)

4-Mercapto-ethyl-pyridine

2-ethyl-1,4-dihydropyridine-4-thione

C7H9NS (139.0456)

4-Pyridylethylmercaptan

2-(pyridin-4-yl)ethane-1-thiol

C7H9NS (139.0456)

5-Formylcytosine

6-amino-2-oxo-1,2-dihydropyrimidine-5-carbaldehyde

C5H5N3O2 (139.0382)

(2E)-2-ethylidene-4-hydroxy-5-methyl-3(2H)-furanone

5-Ethylidene-2-methyl-4-oxo-4,5-dihydrofuran-3-olic acid

C7H7O3 (139.0395)

(2e)-2-ethylidene-4-hydroxy-5-methyl-3(2h)-furanone is soluble (in water) and a very weakly acidic compound (based on its pKa). (2e)-2-ethylidene-4-hydroxy-5-methyl-3(2h)-furanone can be found in a number of food items such as green vegetables, black cabbage, mammee apple, and mamey sapote, which makes (2e)-2-ethylidene-4-hydroxy-5-methyl-3(2h)-furanone a potential biomarker for the consumption of these food products.