Exact Mass: 221.992

Exact Mass Matches: 221.992

Found 83 metabolites which its exact mass value is equals to given mass value 221.992, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

Acetazolamide

N-[5-(Aminosulphonyl)-1,3,5-thiadiazol-2-yl]acetamide

C4H6N4O3S2 (221.9881)


One of the carbonic anhydrase inhibitors that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337) S - Sensory organs > S01 - Ophthalmologicals > S01E - Antiglaucoma preparations and miotics > S01EC - Carbonic anhydrase inhibitors D004791 - Enzyme Inhibitors > D002257 - Carbonic Anhydrase Inhibitors D002491 - Central Nervous System Agents > D000927 - Anticonvulsants C471 - Enzyme Inhibitor > C29577 - Carbonic Anhydrase Inhibitor D002317 - Cardiovascular Agents > D045283 - Natriuretic Agents C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic D045283 - Natriuretic Agents > D004232 - Diuretics CONFIDENCE standard compound; EAWAG_UCHEM_ID 3011

   

3-Sulfomuconate

(2E,4Z)-3-Sulfo-2,4-hexadienedioic acid

C6H6O7S (221.9834)


   

4-Sulfolactone

(5-Oxo-2-sulfo-2,5-dihydrofuran-2-yl)acetic acid

C6H6O7S (221.9834)


   

Bromisoval

Bromovalerylurea

C6H11BrN2O2 (222.0004)


D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D006993 - Hypnotics and Sedatives N - Nervous system > N05 - Psycholeptics > N05C - Hypnotics and sedatives C78272 - Agent Affecting Nervous System > C29756 - Sedative and Hypnotic Same as: D01391

   

2,4'-Dichlorobiphenyl

1-chloro-4-(2-chlorophenyl)benzene

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

4,4-PCB

4,4-Dichlorobiphenyl

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

PCB 9

2,5-DICHLOROBIPHENYL

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

2,6-Dichlorobiphenyl

1,3-dichloro-2-phenylbenzene

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

PCB 14

3,5-Dichlorobiphenyl

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

2-Thenoyltrifluoroacetone

4,4,4-trifluoro-1-(thiophen-2-yl)butane-1,3-dione

C8H5F3O2S (221.9962)


D064449 - Sequestering Agents > D002614 - Chelating Agents

   

2,3-Dichlorobiphenyl

1,2-dichloro-3-phenylbenzene

C12H8Cl2 (222.0003)


   

3,3'-Dichlorobiphenyl

1-chloro-3-(3-chlorophenyl)benzene

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

4-(4-chlorophenyl)pyrimidine-2-thiol

4-(4-chlorophenyl)pyrimidine-2-thiol

C10H7ClN2S (222.0018)


   

6-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine

6-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine

C6H2ClF3N4 (221.992)


   
   

acetazolamide

acetazolamide

C4H6N4O3S2 (221.9881)


S - Sensory organs > S01 - Ophthalmologicals > S01E - Antiglaucoma preparations and miotics > S01EC - Carbonic anhydrase inhibitors D004791 - Enzyme Inhibitors > D002257 - Carbonic Anhydrase Inhibitors D002491 - Central Nervous System Agents > D000927 - Anticonvulsants C471 - Enzyme Inhibitor > C29577 - Carbonic Anhydrase Inhibitor D002317 - Cardiovascular Agents > D045283 - Natriuretic Agents C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic D045283 - Natriuretic Agents > D004232 - Diuretics CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2118; ORIGINAL_PRECURSOR_SCAN_NO 2116 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2116; ORIGINAL_PRECURSOR_SCAN_NO 2114 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2122; ORIGINAL_PRECURSOR_SCAN_NO 2121 INTERNAL_ID 366; CONFIDENCE standard compound; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2122; ORIGINAL_PRECURSOR_SCAN_NO 2121 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2106; ORIGINAL_PRECURSOR_SCAN_NO 2104 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2172; ORIGINAL_PRECURSOR_SCAN_NO 2170 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2116; ORIGINAL_PRECURSOR_SCAN_NO 2112 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4436; ORIGINAL_PRECURSOR_SCAN_NO 4434 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4453; ORIGINAL_PRECURSOR_SCAN_NO 4450 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4473; ORIGINAL_PRECURSOR_SCAN_NO 4469 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4469; ORIGINAL_PRECURSOR_SCAN_NO 4466 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4488; ORIGINAL_PRECURSOR_SCAN_NO 4483 CONFIDENCE standard compound; INTERNAL_ID 366; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4487; ORIGINAL_PRECURSOR_SCAN_NO 4484

   

5-PHENYL-2-THIOPHENECARBONYL CHLORIDE

5-PHENYL-2-THIOPHENECARBONYL CHLORIDE

C11H7ClOS (221.9906)


   

4-(trifluoromethylthio)benzoic acid

4-(trifluoromethylthio)benzoic acid

C8H5F3O2S (221.9962)


   

scandium acetate

scandium acetate

C6H9O6Sc (221.9958)


   

Rhodanine, 5-(2-pyridylmethylene)-

Rhodanine, 5-(2-pyridylmethylene)-

C9H6N2OS2 (221.9922)


   

2-Chloro-6-(trifluoromethyl)-9H-purine

2-Chloro-6-(trifluoromethyl)-9H-purine

C6H2ClF3N4 (221.992)


   

4-Chloro-6-methoxy-2-(methylsulfonyl)pyrimidine

4-Chloro-6-methoxy-2-(methylsulfonyl)pyrimidine

C6H7ClN2O3S (221.9866)


   

tert-butyl 3-bromo-2-oxopropanoate

tert-butyl 3-bromo-2-oxopropanoate

C7H11BrO3 (221.9892)


   

O-2-Naphthyl chlorothioformate

O-2-Naphthyl chlorothioformate

C11H7ClOS (221.9906)


   

5-(4-chlorophenyl)-1H-pyrimidine-2-thione

5-(4-chlorophenyl)-1H-pyrimidine-2-thione

C10H7ClN2S (222.0018)


   

6-chloro-2-(trifluoromethyl)-5H-purine

6-chloro-2-(trifluoromethyl)-5H-purine

C6H2ClF3N4 (221.992)


   

6-Chloro-4-nitro-1H-indazole-3-carbonitrile

6-Chloro-4-nitro-1H-indazole-3-carbonitrile

C8H3ClN4O2 (221.9945)


   

Trimethylsilyl trifluoromethanesulfonate

Trimethylsilyl trifluoromethanesulfonate

C4H9F3O3SSi (221.9994)


   

2,4,6-trimethylphenylmagnesium bromide

2,4,6-trimethylphenylmagnesium bromide

C9H11BrMg (221.9895)


   

2,3-dichlorobiphenyl

2,3-dichlorobiphenyl

C12H8Cl2 (222.0003)


   

3,4-Dichlorobiphenyl

3,4-Dichlorobiphenyl

C12H8Cl2 (222.0003)


   
   

2,2-DICHLOROBIPHENYL

2,2-DICHLOROBIPHENYL

C12H8Cl2 (222.0003)


   

3-THIEN-3-YLBENZOYL CHLORIDE

3-THIEN-3-YLBENZOYL CHLORIDE

C11H7ClOS (221.9906)


   

2-thiophen-2-ylbenzoyl chloride

2-thiophen-2-ylbenzoyl chloride

C11H7ClOS (221.9906)


   

ETHYL 2-(4,5-DICHLORO-1H-IMIDAZOL-1-YL)ACETATE

ETHYL 2-(4,5-DICHLORO-1H-IMIDAZOL-1-YL)ACETATE

C7H8Cl2N2O2 (221.9963)


   

4-(2-THIENYL)BENZOYL CHLORIDE

4-(2-THIENYL)BENZOYL CHLORIDE

C11H7ClOS (221.9906)


   

4-Amino-2-chloro-5-hydroxybenzensulfonamide

4-Amino-2-chloro-5-hydroxybenzensulfonamide

C6H7ClN2O3S (221.9866)


   

2-chloroethyl 4-fluorophenyl sulfone

2-chloroethyl 4-fluorophenyl sulfone

C8H8ClFO2S (221.9918)


   

4-(DIFLUOROCHLOROMETHOXY)BENZOIC ACID

4-(DIFLUOROCHLOROMETHOXY)BENZOIC ACID

C8H5ClF2O3 (221.9895)


   

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

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

C10H4ClFN2O (221.9996)


   

2-Fluorophenylsulphur pentafluoride

2-Fluorophenylsulphur pentafluoride

C6H4F6S (221.9938)


   

7-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrimidine

7-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrimidine

C6H2ClF3N4 (221.992)


   

3-aMino-6-chloro-2-hydroxybenzenesulfonaMide

3-aMino-6-chloro-2-hydroxybenzenesulfonaMide

C6H7ClN2O3S (221.9866)


   

Ethyl 3-bromo-4-oxopentanoate

Ethyl 3-bromo-4-oxopentanoate

C7H11BrO3 (221.9892)


   

4-Chloro-7-fluoro-6-hydroxy-3-quinolinecarbonitrile

4-Chloro-7-fluoro-6-hydroxy-3-quinolinecarbonitrile

C10H4ClFN2O (221.9996)


   

4-Fluorophenylsulphur pentafluoride

4-Fluorophenylsulphur pentafluoride

C6H4F6S (221.9938)


   

Calcium phthalate hydrate (1:1:1)

Calcium phthalate hydrate (1:1:1)

C8H6CaO5 (221.9841)


   

D-Erythrose 4-phosphate sodium

D-Erythrose 4-phosphate sodium

C4H8NaO7P (221.9905)


   

6-CHLORO-2-(TRIFLUOROMETHYL)- [1,2,4]TRIAZOLO[1,5-B]PYRIDAZINE

6-CHLORO-2-(TRIFLUOROMETHYL)- [1,2,4]TRIAZOLO[1,5-B]PYRIDAZINE

C6H2ClF3N4 (221.992)


   

3-(Trifluoromethylthio)benzoic acid

3-(Trifluoromethylthio)benzoic acid

C8H5F3O2S (221.9962)


   

4-ACETYLBENZENESULFONIC ACID SODIUM SALT

4-ACETYLBENZENESULFONIC ACID SODIUM SALT

C8H7NaO4S (221.9963)


   

6-chloro-8-(trifluoromethyl)-9H-purine

6-chloro-8-(trifluoromethyl)-9H-purine

C6H2ClF3N4 (221.992)


   

2-CHLORO-1-(ETHYLSULFONYL)-4-FLUOROBENZENE

2-CHLORO-1-(ETHYLSULFONYL)-4-FLUOROBENZENE

C8H8ClFO2S (221.9918)


   

Ethyl 4-bromo-3-oxopentanoate

Ethyl 4-bromo-3-oxopentanoate

C7H11BrO3 (221.9892)


   

(4-chlorophenyl)-thiophen-2-ylmethanone

(4-chlorophenyl)-thiophen-2-ylmethanone

C11H7ClOS (221.9906)


   

4-N-PROPYLPHENYLMAGNESIUM BROMIDE

4-N-PROPYLPHENYLMAGNESIUM BROMIDE

C9H11BrMg (221.9895)


   

2,3-Dichlorobiphenyl

2,3-Dichlorobiphenyl

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

4-(5-Chlorothiophen-2-yl)benzaldehyde

4-(5-Chlorothiophen-2-yl)benzaldehyde

C11H7ClOS (221.9906)


   

2-(DIFLUOROMETHOXY)-4-CHLOROBENZOIC

2-(DIFLUOROMETHOXY)-4-CHLOROBENZOIC

C8H5ClF2O3 (221.9895)


   

3,4-dichlorobiphenyl

3,4-dichlorobiphenyl

C12H8Cl2 (222.0003)


   

5-CHLORO-2-(TRIFLUOROMETHYL)-[1,2,4]TRIAZOLO[1,5-F]PYRIMIDINE

5-CHLORO-2-(TRIFLUOROMETHYL)-[1,2,4]TRIAZOLO[1,5-F]PYRIMIDINE

C6H2ClF3N4 (221.992)


   

2-Methanesulfonic acid 5-chloropyrazinylmethylester

2-Methanesulfonic acid 5-chloropyrazinylmethylester

C6H7ClN2O3S (221.9866)


   

1H-Pyrazolo[3,4-d]pyrimidine, 4-chloro-6-(trifluoromethyl)-

1H-Pyrazolo[3,4-d]pyrimidine, 4-chloro-6-(trifluoromethyl)-

C6H2ClF3N4 (221.992)


   

Radon

radon atom

Rn (222)


D004785 - Environmental Pollutants > D000393 - Air Pollutants D009676 - Noxae > D002273 - Carcinogens

   

5-(4-Chlorophenyl)-2-thiophenecarbaldehyde

5-(4-Chlorophenyl)-2-thiophenecarbaldehyde

C11H7ClOS (221.9906)


   

Benzenesulfonic acid,3-chloro-4-hydrazinyl-

Benzenesulfonic acid,3-chloro-4-hydrazinyl-

C6H7ClN2O3S (221.9866)


   

2-CHLORO-4-(PHENYLTHIO)PYRIMIDINE

2-CHLORO-4-(PHENYLTHIO)PYRIMIDINE

C10H7ClN2S (222.0018)


   

6-Chloro-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine

6-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine

C6H2ClF3N4 (221.992)


   

6-CHLORO-3-(TRIFLUOROMETHYL)-1H-PYRAZOLO[3,4-D]PYRIMIDINE

6-CHLORO-3-(TRIFLUOROMETHYL)-1H-PYRAZOLO[3,4-D]PYRIMIDINE

C6H2ClF3N4 (221.992)


   

Radon-222

Radon-222

Rn (222)


   

Radon-220

Radon-220

Rn (222)


   

Radon-219

Radon-219

Rn (222)


D004785 - Environmental Pollutants > D000393 - Air Pollutants D009676 - Noxae > D002273 - Carcinogens

   

(R)-2-bromoisovalerylurea

(R)-2-bromoisovalerylurea

C6H11BrN2O2 (222.0004)


   

(2s)-2-Bromo-n-carbamoyl-3-methylbutanamide

(2s)-2-Bromo-n-carbamoyl-3-methylbutanamide

C6H11BrN2O2 (222.0004)


   

1,1,1-Trifluoro-4-hydroxy-4-(2-thienyl)-3-buten-2-one

1,1,1-Trifluoro-4-hydroxy-4-(2-thienyl)-3-buten-2-one

C8H5F3O2S (221.9962)


   

6-Chloro-2-phenyl-4-sulfanylpyrimidine

6-Chloro-2-phenyl-4-sulfanylpyrimidine

C10H7ClN2S (222.0018)


   

(2Z,4E)-2-hydroxy-6-oxo-6-sulfohexa-2,4-dienoic acid

(2Z,4E)-2-hydroxy-6-oxo-6-sulfohexa-2,4-dienoic acid

C6H6O7S (221.9834)


   

1-(2-Thienyl)-3-hydroxy-4,4,4-trifluoro-2-butene-1-one

1-(2-Thienyl)-3-hydroxy-4,4,4-trifluoro-2-butene-1-one

C8H5F3O2S (221.9962)


   

(5-Oxo-2-sulfo-2,5-dihydrofuran-2-yl)acetic acid

(5-Oxo-2-sulfo-2,5-dihydrofuran-2-yl)acetic acid

C6H6O7S (221.9834)


An organosulfonic acid that consists of 5-oxo-2-furylacetic acid bearing a sulfo group at position 2.

   

PCB 8

2,4-DICHLOROBIPHENYL

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

2,6-PCB

2,6-DICHLOROBIPHENYL

C12H8Cl2 (222.0003)


D004785 - Environmental Pollutants > D011078 - Polychlorinated Biphenyls

   

2,6-dichloro-3-methoxy-5-methylbenzene-1,4-diol

2,6-dichloro-3-methoxy-5-methylbenzene-1,4-diol

C8H8Cl2O3 (221.985)