Exact Mass: 278.1266508

Exact Mass Matches: 278.1266508

Found 54 metabolites which its exact mass value is equals to given mass value 278.1266508, within given mass tolerance error 8.0E-6 dalton. Try search metabolite list with more accurate mass tolerance error 1.6E-6 dalton.

OXADIXYL

OXADIXYL

C14H18N2O4 (278.1266508)


CONFIDENCE standard compound; EAWAG_UCHEM_ID 3100 CONFIDENCE standard compound; INTERNAL_ID 525; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7509; ORIGINAL_PRECURSOR_SCAN_NO 7506 CONFIDENCE standard compound; INTERNAL_ID 525; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7589; ORIGINAL_PRECURSOR_SCAN_NO 7585 CONFIDENCE standard compound; INTERNAL_ID 525; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7575; ORIGINAL_PRECURSOR_SCAN_NO 7571 CONFIDENCE standard compound; INTERNAL_ID 525; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7572; ORIGINAL_PRECURSOR_SCAN_NO 7568 CONFIDENCE standard compound; INTERNAL_ID 525; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7583; ORIGINAL_PRECURSOR_SCAN_NO 7581 CONFIDENCE standard compound; INTERNAL_ID 525; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7621; ORIGINAL_PRECURSOR_SCAN_NO 7618

   

N1-(alpha-D-ribosyl)-5,6-dimethyl-benzimidazole

(2S,5R)-2-(5,6-dimethyl-1H-1,3-benzodiazol-1-yl)-5-(hydroxymethyl)oxolane-3,4-diol

C14H18N2O4 (278.1266508)


N1-(alpha-D-ribosyl)-5,6-dimethyl-benzimidazole is an intermediate in riboflavin metabolism. It is converted from N1-(5-Phospho-alpha-D-ribosyl)-5,6-dimethylbenzimidazole via dephosphorylation by the enzyme phosphohistidine phosphatase 1 (EC 3.1.3.-). Humans do not have all the enzymes needed to synthesize or metabolize riboflavin. However, gut microflora do have the necessary enzymatic machinery to produce and metabolize this vitamin. Riboflavin (or vitamin B2) is an easily absorbed micronutrient with a key role in maintaining health in humans and animals. It is the central component of the cofactors FAD and FMN, and is therefore required by all flavoproteins. Riboflavin is yellow or yellow-orange in color and in addition to being used as a food coloring it is also used to fortify some foods including baby foods, breakfast cereals, pastas, sauces, processed cheese, fruit drinks, vitamin-enriched milk products, some energy drinks, and vitamin supplements. [HMDB] N1-(alpha-D-ribosyl)-5,6-dimethyl-benzimidazole is an intermediate in riboflavin metabolism. It is converted from N1-(5-Phospho-alpha-D-ribosyl)-5,6-dimethylbenzimidazole via dephosphorylation by the enzyme phosphohistidine phosphatase 1 (EC 3.1.3.-). Humans do not have all the enzymes needed to synthesize or metabolize riboflavin. However, gut microflora do have the necessary enzymatic machinery to produce and metabolize this vitamin. Riboflavin (or vitamin B2) is an easily absorbed micronutrient with a key role in maintaining health in humans and animals. It is the central component of the cofactors FAD and FMN, and is therefore required by all flavoproteins. Riboflavin is yellow or yellow-orange in color and in addition to being used as a food coloring it is also used to fortify some foods including baby foods, breakfast cereals, pastas, sauces, processed cheese, fruit drinks, vitamin-enriched milk products, some energy drinks, and vitamin supplements.

   

Prolyl-Tyrosine

2-{[hydroxy(pyrrolidin-2-yl)methylidene]amino}-3-(4-hydroxyphenyl)propanoate

C14H18N2O4 (278.1266508)


Prolyl-Tyrosine is a dipeptide composed of proline and tyrosine. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.

   

Phenylalanylhydroxyproline

(2S,4R)-1-[(2S)-2-amino-3-phenylpropanoyl]-4-hydroxypyrrolidine-2-carboxylic acid

C14H18N2O4 (278.1266508)


Phenylalanylhydroxyproline is a proteolytic breakdown product of collagen. It belongs to the family of peptides. These are compounds containing an amide derived from two or more amino carboxylic acid molecules (the same or different) by the formation of a covalent bond from the carbonyl carbon of one to the nitrogen atom of another. It is found in urine (PMID: 3782411). A dipeptide found in urine (PMID: 3782411). This is a proteolytic breakdown product of collagen. [HMDB]

   

Tyrosyl-Proline

1-[2-amino-3-(4-hydroxyphenyl)propanoyl]pyrrolidine-2-carboxylic acid

C14H18N2O4 (278.1266508)


Tyrosyl-Proline is a dipeptide composed of tyrosine and proline. It is an incomplete breakdown product of protein digestion or protein catabolism. Some dipeptides are known to have physiological or cell-signaling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis. This dipeptide has not yet been identified in human tissues or biofluids and so it is classified as an Expected metabolite.

   

4'-Hydroxymethohexital

5-(5-hydroxyhex-3-yn-2-yl)-1-methyl-5-(prop-2-en-1-yl)-1,3-diazinane-2,4,6-trione

C14H18N2O4 (278.1266508)


   

Musk moskene

1,1,3,3,5-pentamethyl-4,6-dinitro-2,3-dihydro-1H-indene

C14H18N2O4 (278.1266508)


Flavouring compound [Superscent]

   

1,4-Dimethyl-2-hydroxy-2-(4-methoxybenzyl)piperazine-3,6-dione

1,4-Dimethyl-2-hydroxy-2-(4-methoxybenzyl)piperazine-3,6-dione

C14H18N2O4 (278.1266508)


   
   

Pesticide4_Oxadixyl_C14H18N2O4_

Pesticide4_Oxadixyl_C14H18N2O4_

C14H18N2O4 (278.1266508)


   
   
   

Phe-Hyp

L-Phenylalanyl-L-hydroxyproline

C14H18N2O4 (278.1266508)


   

carboxy-ptio

2-(4-carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-1H-imidazolyl-1-oxy-3-oxide

C14H18N2O4 (278.1266508)


   

Pro-tyr

1-[2-amino-3-(4-hydroxyphenyl)propanoyl]pyrrolidine-2-carboxylic acid

C14H18N2O4 (278.1266508)


A dipeptide formed from L-proline and L-tyrosine residues.

   

Tyr-pro

3-(4-hydroxyphenyl)-2-(pyrrolidin-2-ylformamido)propanoic acid

C14H18N2O4 (278.1266508)


   

tert-Butyl 7-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate

tert-Butyl 7-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate

C14H18N2O4 (278.1266508)


   

1-Benzyl-1,6-diazaspiro[3.3]heptane oxalate

1-Benzyl-1,6-diazaspiro[3.3]heptane oxalate

C14H18N2O4 (278.1266508)


   

tert-Butyl 7-nitro-3,4-dihydroquinoline-1(2H)-carboxylate

tert-Butyl 7-nitro-3,4-dihydroquinoline-1(2H)-carboxylate

C14H18N2O4 (278.1266508)


   

4-Amino-1-Cbz-piperidine-4-carboxylic Acid

4-Amino-1-Cbz-piperidine-4-carboxylic Acid

C14H18N2O4 (278.1266508)


   

Propanedioic acid,2-[[(6-methyl-2-pyridinyl)amino]methylene]-, 1,3-diethyl ester

Propanedioic acid,2-[[(6-methyl-2-pyridinyl)amino]methylene]-, 1,3-diethyl ester

C14H18N2O4 (278.1266508)


   

4-CarboxyMethyl-piperazine-1-carboxylic acid benzyl ester

4-CarboxyMethyl-piperazine-1-carboxylic acid benzyl ester

C14H18N2O4 (278.1266508)


   

4-(2-TERT-BUTOXYCARBONYLAMINO-2-IMINO-ETHYL)-BENZOIC ACID

4-(2-TERT-BUTOXYCARBONYLAMINO-2-IMINO-ETHYL)-BENZOIC ACID

C14H18N2O4 (278.1266508)


   

1-Benzyl 3-methyl 1,3-piperazinedicarboxylate

1-Benzyl 3-methyl 1,3-piperazinedicarboxylate

C14H18N2O4 (278.1266508)


   

Methyl 4-(N-(tert-butoxycarbonyl)carbaMiMidoyl)benzoate

Methyl 4-(N-(tert-butoxycarbonyl)carbaMiMidoyl)benzoate

C14H18N2O4 (278.1266508)


   

[3-(TERT-BUTOXYCARBONYLAMINO-IMINO-METHYL)-PHENYL]-ACETIC ACID

[3-(TERT-BUTOXYCARBONYLAMINO-IMINO-METHYL)-PHENYL]-ACETIC ACID

C14H18N2O4 (278.1266508)


   

moskene

1,1,3,3,5-pentamethyl-4,6-dinitroindane

C14H18N2O4 (278.1266508)


   

tert-butyl6-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate

tert-butyl6-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate

C14H18N2O4 (278.1266508)


   

Carbamic acid, cyclohexyl-, (2-nitrophenyl)methyl ester (9CI)

Carbamic acid, cyclohexyl-, (2-nitrophenyl)methyl ester (9CI)

C14H18N2O4 (278.1266508)


   

(R)-1-Benzyl 2-methyl piperazine-1,2-dicarboxylate

(R)-1-Benzyl 2-methyl piperazine-1,2-dicarboxylate

C14H18N2O4 (278.1266508)


   

1-Benzyl 2-methyl 1,2-piperazinedicarboxylate

1-Benzyl 2-methyl 1,2-piperazinedicarboxylate

C14H18N2O4 (278.1266508)


   

4-[Cyclohexyl(methyl)amino]-3-nitrobenzoic acid

4-[Cyclohexyl(methyl)amino]-3-nitrobenzoic acid

C14H18N2O4 (278.1266508)


   

4-(2,6-DIMETHYLMORPHOLINO)-3-NITROACETOPHENONE

4-(2,6-DIMETHYLMORPHOLINO)-3-NITROACETOPHENONE

C14H18N2O4 (278.1266508)


   

Propanedioicacid, 2-[[(5-methyl-2-pyridinyl)amino]methylene]-, 1,3-diethyl ester

Propanedioicacid, 2-[[(5-methyl-2-pyridinyl)amino]methylene]-, 1,3-diethyl ester

C14H18N2O4 (278.1266508)


   
   

(R)-4-N-Cbz-Piperazine-2-carboxylic acid methyl ester

(R)-4-N-Cbz-Piperazine-2-carboxylic acid methyl ester

C14H18N2O4 (278.1266508)


   

6-(TERT-BUTOXYCARBONYL)-5,6,7,8-TETRAHYDRO-1,6-NAPHTHYRIDINE-2-CARBOXYLIC ACID

6-(TERT-BUTOXYCARBONYL)-5,6,7,8-TETRAHYDRO-1,6-NAPHTHYRIDINE-2-CARBOXYLIC ACID

C14H18N2O4 (278.1266508)


   

4-Cbz-Piperazine-2-Carboxylate Methyl Ester

4-Cbz-Piperazine-2-Carboxylate Methyl Ester

C14H18N2O4 (278.1266508)


   

7-[(tert-butoxy)carbonyl]-5,6,7,8-tetrahydro-1,7-naphthyridine-3-carboxylic acid

7-[(tert-butoxy)carbonyl]-5,6,7,8-tetrahydro-1,7-naphthyridine-3-carboxylic acid

C14H18N2O4 (278.1266508)


   

TERT-BUTYL 5-NITRO-3,4-DIHYDROISOQUINOLINE-2(1H)-CARBOXYLATE

TERT-BUTYL 5-NITRO-3,4-DIHYDROISOQUINOLINE-2(1H)-CARBOXYLATE

C14H18N2O4 (278.1266508)


   

Propanedioic acid,2-[[(4-methyl-2-pyridinyl)amino]methylene]-, 1,3-diethyl ester

Propanedioic acid,2-[[(4-methyl-2-pyridinyl)amino]methylene]-, 1,3-diethyl ester

C14H18N2O4 (278.1266508)


   

3-Nitro-4-(Cyclohexylamino) Benzoic Acid Methyl Ester

3-Nitro-4-(Cyclohexylamino) Benzoic Acid Methyl Ester

C14H18N2O4 (278.1266508)


   
   
   

L-Phenylalanyl-L-hydroxyproline

L-Phenylalanyl-L-hydroxyproline

C14H18N2O4 (278.1266508)


   

2-Propyl-5-(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazole

2-Propyl-5-(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazole

C14H18N2O4 (278.1266508)


   
   
   

N1-(alpha-D-ribosyl)-5,6-dimethyl-benzimidazole

N1-(alpha-D-ribosyl)-5,6-dimethyl-benzimidazole

C14H18N2O4 (278.1266508)


   

1-(2-Amino-3-phenylpropanoyl)-4-hydroxypyrrolidine-2-carboxylic acid

1-(2-Amino-3-phenylpropanoyl)-4-hydroxypyrrolidine-2-carboxylic acid

C14H18N2O4 (278.1266508)


   

n-hydroxy(2e)-2-(n-hydroxyimino)-3-{4-[(3-methylbut-2-en-1-yl)oxy]phenyl}propanimidic acid

n-hydroxy(2e)-2-(n-hydroxyimino)-3-{4-[(3-methylbut-2-en-1-yl)oxy]phenyl}propanimidic acid

C14H18N2O4 (278.1266508)


   
   

n-hydroxy-2-(n-hydroxyimino)-3-{4-[(3-methylbut-2-en-1-yl)oxy]phenyl}propanamide

n-hydroxy-2-(n-hydroxyimino)-3-{4-[(3-methylbut-2-en-1-yl)oxy]phenyl}propanamide

C14H18N2O4 (278.1266508)


   

n-[(2s)-1-methoxy-4-[2-(methylamino)phenyl]-1,4-dioxobutan-2-yl]ethanimidic acid

n-[(2s)-1-methoxy-4-[2-(methylamino)phenyl]-1,4-dioxobutan-2-yl]ethanimidic acid

C14H18N2O4 (278.1266508)