Exact Mass: 291.0718
Exact Mass Matches: 291.0718
Found 74 metabolites which its exact mass value is equals to given mass value 291.0718,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
prontosil
A diphenyldiazene compound having two amino substituents at the 2- and 4-positions and an aminosulphonyl substituent at the 4-position. It was the first antibacterial drug, (introduced 1935) and the first of the sulfonamide antibiotics. C254 - Anti-Infective Agent > C29739 - Sulfonamide Anti-Infective Agent
Crufomate
C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C250 - Antihelminthic Agent CONFIDENCE standard compound; INTERNAL_ID 237; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9553; ORIGINAL_PRECURSOR_SCAN_NO 9552 CONFIDENCE standard compound; INTERNAL_ID 237; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9578; ORIGINAL_PRECURSOR_SCAN_NO 9577 CONFIDENCE standard compound; INTERNAL_ID 237; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9598; ORIGINAL_PRECURSOR_SCAN_NO 9597 CONFIDENCE standard compound; INTERNAL_ID 237; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9618; ORIGINAL_PRECURSOR_SCAN_NO 9616 CONFIDENCE standard compound; INTERNAL_ID 237; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9590; ORIGINAL_PRECURSOR_SCAN_NO 9588 CONFIDENCE standard compound; INTERNAL_ID 237; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9626; ORIGINAL_PRECURSOR_SCAN_NO 9624
Hawkinsin
Hawkinsin is a sulfur amino acid identified as (2-L-cystein-S-yl-1,4-dihydroxycyclohex-5-en-1-yl)acetic acid. It is a reactive byproduct of abnormal tyrosine metabolism. Normally, the breakdown of the amino acid tyrosine involves the conversion of 4-hydroxyphenylpyruvate to homogentisate by 4-hydroxyphenylpyruvate dioxygenase. Complete deficiency of this enzyme leads to an inborn error of metabolism called tyrosinemia III. In rare cases, however, the enzyme is still able to produce the reactive intermediate 1,2-epoxyphenyl acetic acid but is unable to convert this intermediate to homogentisate (PMID: 11073718). The intermediate then spontaneously reacts with glutathione to form hawkinsin. Chronically high levels of hawkinsin are associated with hawkinsinuria (characterized by the inability to break down the amino acid tyrosine). Patients with hawkinsinuria excrete hawkinsin in their urine throughout their life. The features of this condition usually appear around the time infants are weaned off breast milk and begin to use formula. The signs and symptoms may include the following: failure to gain weight and grow at the expected rate (failure to thrive), abnormally high acid levels in the blood (acidosis), and fine or sparse hair. Hawkinsin is an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Hawkinsin is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated hawkinsinuria. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. Hawkinsin is a sulfur amino acid identified as (2-l-cystein-S-yl, 4-dihydroxycyclohex-5-en-1-yl)acetic acid. Patients with hawkinsinuria excrete this metabolite in their urine throughout their life, although symptoms of metabolic acidosis and tyrosinemia improve in the first year of life. Alterations in the structure and activity of 4-hydroxyphenylpyruvic acid dioxygenase are causally related to two different metabolic disorders, tyrosinemia type III and hawkinsinuria. (PMID 11073718) [HMDB]
Orciprenaline-3-O-sulfate
Orciprenaline-3-O-sulfate is a metabolite of orciprenaline. Orciprenaline is a bronchodilator used in the treatment of asthma. Orciprenaline is a moderately selective beta2-adrenergic receptor agonist that stimulates receptors of the smooth muscle in the lungs, uterus, and vasculature supplying skeletal muscle, with minimal or no effect on alpha-adrenergic receptors. (Wikipedia)
Acetamide, N-[4-[(2-pyridinylamino)sulfonyl]phenyl]-
D000890 - Anti-Infective Agents > D013424 - Sulfanilamides
2',3'-Dideoxycytidine-5'-monophosphate
Cloranolol
C - Cardiovascular system > C07 - Beta blocking agents > C07A - Beta blocking agents > C07AA - Beta blocking agents, non-selective C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C72900 - Adrenergic Antagonist D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D018674 - Adrenergic Antagonists D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents
zomepirac
M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids > M01AB - Acetic acid derivatives and related substances C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents
zomepirac
M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids > M01AB - Acetic acid derivatives and related substances C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents
4-(1-Pyrrolidinylsulforylmenthyl)phenylhydrazine hydrochloride
2-(3,4,5-trimethoxyphenyl)-1,3-thiazolidine,hydrochloride
4-Chloro-2-methyl-3-(3-oxobutyl)quinoline-6-carboxylic acid
4-(2-bromoacetamido)-2,2,6,6-tetramethyl-1-piperidinyloxy
3-[(4-Amino-3-methylphenyl)azo]benzenesulfonic acid
1H-Benz[g]indole-3-carboxaldehyde,2-(5-methyl-2-thienyl)-(9CI)
3-(2-Bromoacetamidomethyl)-PROXYL3-(2-Bromoacetamidomethyl)-2,2,5,5-tetramethyl-1-pyrrolidinoxy
Radafaxine hydrochloride
C78272 - Agent Affecting Nervous System > C265 - Antidepressant Agent
N-[2-(Piperazin-1-yl)phenyl]methylsulphonamide hydrochloride
3,3,3-trifluoro-2-methyl-2-(phenylmethoxycarbonylamino)propanoic acid
ethyl (E)-3-(2-chlorophenyl)-2-(1,2,4-triazol-1-ylmethyl)prop-2-enoate
2,3-PYRIDINEDICARBOXYLIC ACID, 5-(TRIFLUOROMETHYL)-, DIETHYL ESTER
7-Amino-3-(1-pyridylmethyl)-3-cephem-4-carboxylic Acid
(5-((((Benzyloxy)carbonyl)amino)methyl)thiophen-2-yl)boronic acid
Cloranolol
C - Cardiovascular system > C07 - Beta blocking agents > C07A - Beta blocking agents > C07AA - Beta blocking agents, non-selective C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C72900 - Adrenergic Antagonist D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D018674 - Adrenergic Antagonists D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents
(2-l-cystein-S-yl-1,4-dihydroxycyclohex-5-en-1-yl)-acetic acid
N-(5-chloro-2-hydroxyphenyl)-2-(4-methoxyphenyl)acetamide
4-Hydroxy-3,6-dioxo-2,5-diphenylcyclohexa-1,4-dien-1-olate
(2R)-2-amino-N-[4-chloro-2-[oxo(1H-pyrrol-2-yl)methyl]phenyl]propanamide
3-amino-N-[4-chloro-2-[oxo(1H-pyrrol-2-yl)methyl]phenyl]propanamide
Acetamide, N-[4-[(2-pyridinylamino)sulfonyl]phenyl]-
D000890 - Anti-Infective Agents > D013424 - Sulfanilamides
Hawkinsin
A cysteine derivative that is cysteine in which the thiol group is substituted by a [2-(carboxymethyl)-2,5-dihydroxycyclohex-3-en-1-yl]sulfanediyl group. Hawkinsinuria is an inherited disorder which is characterized by the inability to break down the amino acid tyrosine. This results in the finding of certain metabolites in the urine, such as hawkinsin.
