Exact Mass: 203.9993

Exact Mass Matches: 203.9993

Found 81 metabolites which its exact mass value is equals to given mass value 203.9993, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

O-methoxycatechol-O-sulphate

O-Methylcatechol hydrogen sulphuric acid

C7H8O5S (204.0092)


O-methoxycatechol-O-sulphate is a conjugate of O-methoxycatechol and sulphate.

   

4-Methylcatechol 1-sulfate

(2-hydroxy-4-methylphenyl)oxidanesulfonic acid

C7H8O5S (204.0092)


4-Methylcatechol 1-sulfate is a member of the class of compounds known as phenylsulfates. Phenylsulfates are compounds containing a sulfuric acid group conjugated to a phenyl group. 4-Methylcatechol 1-sulfate is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). 4-Methylcatechol 1-sulfate has been identified in the human placenta (PMID: 32033212). 4-methyl-catechol-1-o-sulphate is a member of the class of compounds known as phenylsulfates. Phenylsulfates are compounds containing a sulfuric acid group conjugated to a phenyl group. 4-methyl-catechol-1-o-sulphate is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa).

   

4-Methylcatechol 2-sulfate

(2-hydroxy-5-methylphenyl)oxidanesulfonic acid

C7H8O5S (204.0092)


4-Methylcatechol 2-sulfate is a member of the class of compounds known as phenylsulfates. Phenylsulfates are compounds containing a sulfuric acid group conjugated to a phenyl group. 4-Methylcatechol 2-sulfate is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). 4-Methylcatechol 2-sulfate has been identified in the human placenta (PMID: 32033212). 4-methyl-catechol-2-o-sulphate is a member of the class of compounds known as phenylsulfates. Phenylsulfates are compounds containing a sulfuric acid group conjugated to a phenyl group. 4-methyl-catechol-2-o-sulphate is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa).

   

3-Methylcatechol 1-sulfate

(2-hydroxy-3-methylphenyl)oxidanesulfonic acid

C7H8O5S (204.0092)


3-Methylcatechol 1-sulfate belongs to the class of organic compounds known as phenylsulfates. These are compounds containing a sulfuric acid group conjugated to a phenyl group. 3-Methylcatechol sulfate is a potential urinary biomarker of whole grain intake (PMID: 27805021).

   

3-Methylcatechol 2-sulfate

(2-Hydroxy-6-methylphenyl)oxidanesulphonic acid

C7H8O5S (204.0092)


3-Methylcatechol 2-sulfate belongs to the class of organic compounds known as phenylsulfates. These are compounds containing a sulfuric acid group conjugated to a phenyl group. 3-Methylcatechol sulfate is a potential urinary biomarker of whole grain intake (PMID: 27805021).

   

Sulfuric acid 4-methoxyphenyl ester

(4-methoxyphenyl)oxidanesulfonic acid

C7H8O5S (204.0092)


   

1,2-Difluoro-3,4-dinitrobenzene

1,2-Difluoro-3,4-dinitrobenzene

C6H2F2N2O4 (203.9983)


   

3-Methoxyphenol sulfate

(3-Methoxyphenyl)oxidanesulphonic acid

C7H8O5S (204.0092)


   

2-Methoxyphenol sulfate

2-Methoxyphenol sulfate

C7H8O5S (204.0092)


   

3-Methoxyphenol sulfate

3-Methoxyphenol sulfate

C7H8O5S (204.0092)


   

4-Methoxyphenol sulfate

(4-methoxyphenyl)oxidanesulfonic acid

C7H8O5S (204.0092)


   

5-fluoro-4-(carboxymethylthio)uracil

5-fluoro-4-(carboxymethylthio)uracil

C6H5FN2O3S (204.0005)


   

Acetic acid,2-(3-chloro-4-fluorophenoxy)-

Acetic acid,2-(3-chloro-4-fluorophenoxy)-

C8H6ClFO3 (203.9989)


   

(2-Chloro-4-fluorophenoxy)acetic acid

(2-Chloro-4-fluorophenoxy)acetic acid

C8H6ClFO3 (203.9989)


   

3-Quinolinecarbonitrile, 6-chloro-1,2-dihydro-2-oxo-

3-Quinolinecarbonitrile, 6-chloro-1,2-dihydro-2-oxo-

C10H5ClN2O (204.009)


   

4-(difluoromethylsulfanyl)benzoic acid

4-(difluoromethylsulfanyl)benzoic acid

C8H6F2O2S (204.0057)


   

1,2-difluoro-4,5-dinitrobenzene

1,2-difluoro-4,5-dinitrobenzene

C6H2F2N2O4 (203.9983)


   

Benzo[b]thiophene-3-carbonitrile, 2-nitro- (9CI)

Benzo[b]thiophene-3-carbonitrile, 2-nitro- (9CI)

C9H4N2O2S (203.9993)


   

2-(difluoromethylthio)benzoic acid

2-(difluoromethylthio)benzoic acid

C8H6F2O2S (204.0057)


   

Pyrocatechol-4-ammoniumsul fonate

Pyrocatechol-4-ammoniumsul fonate

C6H6NO5S (203.9967)


   

(5-Chloro-pyrimidin-2-yl)-isopropyl-amine

(5-Chloro-pyrimidin-2-yl)-isopropyl-amine

C7H8O3S2 (203.9915)


   

3-Quinolinecarbonitrile, 7-chloro-4-hydroxy-

3-Quinolinecarbonitrile, 7-chloro-4-hydroxy-

C10H5ClN2O (204.009)


   

8-chloro-4-oxo-1H-quinoline-3-carbonitrile

8-chloro-4-oxo-1H-quinoline-3-carbonitrile

C10H5ClN2O (204.009)


   

6-Chloro-4-oxo-1,4-dihydro-3-quinolinecarbonitrile

6-Chloro-4-oxo-1,4-dihydro-3-quinolinecarbonitrile

C10H5ClN2O (204.009)


   

8-Chloro-4-oxo-1,4-dihydro-3-quinolinecarbonitrile

8-Chloro-4-oxo-1,4-dihydro-3-quinolinecarbonitrile

C10H5ClN2O (204.009)


   

2,4-Dimethylbenzene sulfonyl chloride

2,4-Dimethylbenzene sulfonyl chloride

C8H9ClO2S (204.0012)


   

2,5-dimethylbenzenesulfonyl chloride

2,5-dimethylbenzenesulfonyl chloride

C8H9ClO2S (204.0012)


   

1-(5-methylsulfonylthiophen-2-yl)ethanone

1-(5-methylsulfonylthiophen-2-yl)ethanone

C7H8O3S2 (203.9915)


   

2,6-Dichloro-3-methylphenylboronic acid

2,6-Dichloro-3-methylphenylboronic acid

C7H7BCl2O2 (203.9916)


   

3,5-dimethylbenzenesulfonyl chloride

3,5-dimethylbenzenesulfonyl chloride

C8H9ClO2S (204.0012)


   

2,6-Dimethylbenzenesulfonyl Chloride

2,6-Dimethylbenzenesulfonyl Chloride

C8H9ClO2S (204.0012)


   

ethyl 5-chloro-4-methylthiophene-2-carboxylate

ethyl 5-chloro-4-methylthiophene-2-carboxylate

C8H9ClO2S (204.0012)


   

Naphtho[1,8-de]-1,3-dithiin

Naphtho[1,8-de]-1,3-dithiin

C11H8S2 (204.0067)


   

(4-Methylphenyl)methanesulfonyl chloride

(4-Methylphenyl)methanesulfonyl chloride

C8H9ClO2S (204.0012)


   

(3,4-Dichloro-2-methylphenyl)boronic acid

(3,4-Dichloro-2-methylphenyl)boronic acid

C7H7BCl2O2 (203.9916)


   

METHYL 3-HYDROXY-5-(METHYLTHIO)THIOPHENE-2-CARBOXYLATE

METHYL 3-HYDROXY-5-(METHYLTHIO)THIOPHENE-2-CARBOXYLATE

C7H8O3S2 (203.9915)


   

4-Chlorophenyl Ethyl Sulfone

4-Chlorophenyl Ethyl Sulfone

C8H9ClO2S (204.0012)


   

4-Methylsulfonyloxy benzenethiol

4-Methylsulfonyloxy benzenethiol

C7H8O3S2 (203.9915)


   

2-Chloroethyl Phenyl Sulfone

2-Chloroethyl Phenyl Sulfone

C8H9ClO2S (204.0012)


   

4-Ethylbenzenesulfonyl chloride

4-Ethylbenzenesulfonyl chloride

C8H9ClO2S (204.0012)


   

2-Bromo-1-(ethoxymethyl)-1H-imidazole

2-Bromo-1-(ethoxymethyl)-1H-imidazole

C6H9BrN2O (203.9898)


   

4-Chloro-2-oxo-1,2-dihydro-3-quinolinecarbonitrile

4-Chloro-2-oxo-1,2-dihydro-3-quinolinecarbonitrile

C10H5ClN2O (204.009)


   

6-Chloro-2-fluoro-3-methoxybenzoic acid

6-Chloro-2-fluoro-3-methoxybenzoic acid

C8H6ClFO3 (203.9989)


   

4,4-DIMETHYLBIPHENYL

4,4-DIMETHYLBIPHENYL

C8H9ClO2S (204.0012)


   

O-TOLYL-METHANESULFONYLCHLORIDE

O-TOLYL-METHANESULFONYLCHLORIDE

C8H9ClO2S (204.0012)


   

3-Chloro-5-fluoro-4-methoxybenzoic acid

3-Chloro-5-fluoro-4-methoxybenzoic acid

C8H6ClFO3 (203.9989)


   

2-Chloro-6-fluoro-3-methoxybenzoic acid

2-Chloro-6-fluoro-3-methoxybenzoic acid

C8H6ClFO3 (203.9989)


   

Methyl 5-chloro-2,6-dihydroxy-4-pyrimidinecarboxylate

Methyl 5-chloro-2,6-dihydroxy-4-pyrimidinecarboxylate

C6H5ClN2O4 (203.9938)


   
   

(2,6-Dichlorobenzyl)boronic acid

(2,6-Dichlorobenzyl)boronic acid

C7H7BCl2O2 (203.9916)


   

(Pentafluoro-λ6-sulfanyl)benzene

(Pentafluoro-λ6-sulfanyl)benzene

C6H5F5S (204.0032)


   

5-(trifluoromethyl)benzo-[2,1,3]-thiadiazole

5-(trifluoromethyl)benzo-[2,1,3]-thiadiazole

C7H3F3N2S (203.9969)


   

2-Chloro-1-methyl-4-(methylsulfonyl)benzene

2-Chloro-1-methyl-4-(methylsulfonyl)benzene

C8H9ClO2S (204.0012)


   

(4-METHYLPYRIDIN-2-YL)METHYLAMINE

(4-METHYLPYRIDIN-2-YL)METHYLAMINE

C7H9O3PS (204.001)


   

1-(CHLOROACETYL)-2-(TRIFLUOROACETYL)HYDRAZINE

1-(CHLOROACETYL)-2-(TRIFLUOROACETYL)HYDRAZINE

C4H4ClF3N2O2 (203.9913)


   

1,3-difluoro-2,4-dinitro-benzene

1,3-difluoro-2,4-dinitro-benzene

C6H2F2N2O4 (203.9983)


   

3-(difluoromethylsulfanyl)benzoic acid

3-(difluoromethylsulfanyl)benzoic acid

C8H6F2O2S (204.0057)


   

3-(4-bromopyrazol-1-yl)propan-1-ol

3-(4-bromopyrazol-1-yl)propan-1-ol

C6H9BrN2O (203.9898)


   

4-(Methylsulfonyl)benzylchloride

4-(Methylsulfonyl)benzylchloride

C8H9ClO2S (204.0012)


   

1,5-Difluoro-2,4-dinitrobenzene

1,5-Difluoro-2,4-dinitrobenzene

C6H2F2N2O4 (203.9983)


   

2,4-Dichloro-5,6,7,8-tetrahydropteridine

2,4-Dichloro-5,6,7,8-tetrahydropteridine

C6H6Cl2N4 (203.9969)


   

Dichloro(ethyl)phenylsilane

Dichloro(ethyl)phenylsilane

C8H10Cl2Si (203.9929)


   

3,5-Dichloro-2-methylphenylboronic acid

3,5-Dichloro-2-methylphenylboronic acid

C7H7BCl2O2 (203.9916)


   

4-Chlorobenzofuro[3,2-d]pyrimidine

4-Chlorobenzofuro[3,2-d]pyrimidine

C10H5ClN2O (204.009)


   

4-Thiazolecarboxylicacid, 5-amino-2,3-dihydro-2-thioxo-, ethyl ester

4-Thiazolecarboxylicacid, 5-amino-2,3-dihydro-2-thioxo-, ethyl ester

C6H8N2O2S2 (204.0027)


   

Propylenediphosphonicacid

Propylenediphosphonicacid

C3H10O6P2 (203.9953)


   

s-(2-thiazolyl)-l-cysteine

s-(2-thiazolyl)-l-cysteine

C6H8N2O2S2 (204.0027)


   

2-Phenylethanesulfonyl chloride

2-Phenylethanesulfonyl chloride

C8H9ClO2S (204.0012)


   

2-N-Cyclopropylamino-4,6-DichloroTriazine

2-N-Cyclopropylamino-4,6-DichloroTriazine

C6H6Cl2N4 (203.9969)


   

P-TOLUENESULFONYLMETHYL CHLORIDE

P-TOLUENESULFONYLMETHYL CHLORIDE

C8H9ClO2S (204.0012)


   

M-TOLYLMETHANESULFONYL CHLORIDE

M-TOLYLMETHANESULFONYL CHLORIDE

C8H9ClO2S (204.0012)


   

4-Amino-2-methylthio-thiazole-5-carboxylic acid methyl ester

4-Amino-2-methylthio-thiazole-5-carboxylic acid methyl ester

C6H8N2O2S2 (204.0027)


   

(3-Chloro-4-fluorophenyl)thiourea

(3-Chloro-4-fluorophenyl)thiourea

C7H6ClFN2S (203.9924)


   

2-[2-(Methylthio)ethyl]-3-oxobutanedioate

2-[2-(Methylthio)ethyl]-3-oxobutanedioate

C7H8O5S-2 (204.0092)


   

3-Methylcatechol 2-sulfate

3-Methylcatechol 2-sulfate

C7H8O5S (204.0092)


   

4-Hydroxy-3-methoxybenzenesulfonic acid

4-Hydroxy-3-methoxybenzenesulfonic acid

C7H8O5S (204.0092)


R - Respiratory system > R05 - Cough and cold preparations > R05C - Expectorants, excl. combinations with cough suppressants > R05CA - Expectorants C78273 - Agent Affecting Respiratory System > C29767 - Expectorant

   

O-Methoxyphenyl sulfate

O-Methoxyphenyl sulfate

C7H8O5S (204.0092)


   

Sulfuric acid 4-methoxyphenyl ester

Sulfuric acid 4-methoxyphenyl ester

C7H8O5S (204.0092)


   

2-Hydroxy-4-methylphenyl hydrogen sulfate

2-Hydroxy-4-methylphenyl hydrogen sulfate

C7H8O5S (204.0092)


   

2-Hydroxy-5-methylphenyl hydrogen sulfate

2-Hydroxy-5-methylphenyl hydrogen sulfate

C7H8O5S (204.0092)


   

Guaiacol sulfate

(2-methoxyphenyl) hydrogen sulfate

C7H8O5S (204.0092)