Exact Mass: 277.2171

Exact Mass Matches: 277.2171

Found 266 metabolites which its exact mass value is equals to given mass value 277.2171, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Amitriptyline

dimethyl(3-{tricyclo[9.4.0.0³,⁸]pentadeca-1(15),3,5,7,11,13-hexaen-2-ylidene}propyl)amine

C20H23N (277.183)

Amitriptyline hydrochloride is a dibenzocycloheptene-derivative tricyclic antidepressant (TCA). TCAs are structurally similar to phenothiazines. They contain a tricyclic ring system with an alkyl amine substituent on the central ring. In non-depressed individuals, amitriptyline does not affect mood or arousal, but may cause sedation. In depressed individuals, amitriptyline exerts a positive effect on mood. TCAs are potent inhibitors of serotonin and norepinephrine reuptake. Tertiary amine TCAs, such as amitriptyline, are more potent inhibitors of serotonin reuptake than secondary amine TCAs, such as nortriptyline. TCAs also down-regulate cerebral cortical β-adrenergic receptors and sensitize post-synaptic serotonergic receptors with chronic use. The antidepressant effects of TCAs are thought to be due to an overall increase in serotonergic neurotransmission. TCAs also block histamine-H₁ receptors, α₁-adrenergic receptors and muscarinic receptors, which accounts for their sedative, hypotensive and anticholinergic effects (e.g. blurred vision, dry mouth, constipation, urinary retention), respectively. See toxicity section below for a complete listing of side effects. Amitriptyline may be used to treat depression, chronic pain (unlabeled use), irritable bowel syndrome (unlabeled use), diabetic neuropathy (unlabeled use), post-traumatic stress disorder (unlabeled use), and for migraine prophylaxis (unlabeled use). N - Nervous system > N06 - Psychoanaleptics > N06A - Antidepressants > N06AA - Non-selective monoamine reuptake inhibitors D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors C78272 - Agent Affecting Nervous System > C265 - Antidepressant Agent > C94727 - Tricyclic Antidepressant D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D000928 - Antidepressive Agents D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D049990 - Membrane Transport Modulators

2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine

2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, perchlorate, (+-)-isomer

C20H23N (277.183)

2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, also known as EDDP, is a major inactive metabolite of the opioid methadone. Methadone is an opioid drug that is often used to treat addiction to other opioids, such as heroin, oxycodone or fentanyl. Methadone is metabolised in the liver and small intestine where it is converted to EDDP through N-demethylation and cyclization by CYP3A4 (PMID: 15501692, 27320437). EDDP and methadone are eliminated through the kidneys. As such it is common to monitor the urine of patients in a clinical and forensic settings. EDDP is formed through N-desmethylmethadone reacting with itself and cyclizing through condensation of the secondary amine with the carbonyl group (PMID: 27320437). EDDP belongs to the family of compounds known as Diphenylmethanes. These are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups. EDDP is only found in individuals who have taken or been given methadone. CONFIDENCE standard compound; EAWAG_UCHEM_ID 2825

Venlafaxine

Cyclohexanol, 1-(2-(dimethylamino)-1-(4-methoxyphenyl)ethyl)-, hydrochloride

C17H27NO2 (277.2042)

Venlafaxine (brand name: Effexor or Efexor) is a bicyclic antidepressant and is usually categorized as a serotonin-norepinephrine reuptake inhibitor (SNRI), but it has been referred to as a serotonin-norepinephrine-dopamine reuptake inhibitor. It works by blocking the transporter reuptake proteins for key neurotransmitters affecting mood, thereby leaving more active neurotransmitter in the synapse. The neurotransmitters affected are serotonin (5-hydroxytryptamine) and norepinephrine (noradrenaline). Additionally, in high doses, it weakly inhibits the reuptake of dopamine. A comparison of adverse event rates in a fixed-dose study comparing venlafaxine 75, 225, and 375 mg/day with placebo revealed a dose dependency for some of the more common adverse events associated with venlafaxine use. The rule for including events was to enumerate those that occurred at an incidence of 5\\% or more for at least one of the venlafaxine groups and for which the incidence was at least twice the placebo incidence for at least one venlafaxine group. Tests for potential dose relationships for these events (Cochran-Armitage Test, with a criterion of exact 2-sided p-value <= 0.05) suggested a dose-dependency for several adverse events in this list, including chills, hypertension, anorexia, nausea, agitation, dizziness, somnolence, tremor, yawning, sweating, and abnormal ejaculation (Wyeth Monograph). Venlafaxine is an effective anti-depressant for many persons; however, it seems to be especially effective for those with treatment-resistant depression. Patients suffering from severe long-term depression typically respond better to venlafaxine than other drugs. However, venlafaxine has been reported to be more difficult to discontinue than other antidepressants. In addition, a September 2004 Consumer Reports study ranked venlafaxine as the most effective among six commonly prescribed antidepressants. However, this should not be considered a definitive finding, since responses to psychiatric medications can vary significantly from individual to individual. A black box warning has been issued with venlafaxine and with other SSRI and SNRI anti-depressants advising of risk of suicide. There is an additional risk if a physician misinterprets patient expression of adverse effects such as panic or akathisia. Careful assessment of patient history and comorbid risk factors such as drug abuse are essential in evaluating the safety of venlafaxine for individual patients. Another risk is serotonin syndrome. This is a serious effect that can be caused by interactions with other drugs and is potentially fatal. This risk necessitates clear information to patients and proper medical history. Venlafaxine is used primarily for the treatment of depression, generalized anxiety disorder, obsessive-compulsive disorder, social anxiety disorder, and panic disorder in adults. It is also used for other general depressive disorders. Although it is not approved for use in children or adolescents, there is considerable information by Wyeth on cautions if prescribed to this age group. Venlafaxine hydrochloride is a prescription antidepressant first introduced by Wyeth in 1993. As of August 2006, generic venlafaxine is available in the United States. CONFIDENCE standard compound; INTERNAL_ID 417; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7277; ORIGINAL_PRECURSOR_SCAN_NO 7275 CONFIDENCE standard compound; INTERNAL_ID 417; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7245; ORIGINAL_PRECURSOR_SCAN_NO 7242 CONFIDENCE standard compound; INTERNAL_ID 417; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7253; ORIGINAL_PRECURSOR_SCAN_NO 7251 CONFIDENCE standard compound; INTERNAL_ID 417; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7306; ORIGINAL_PRECURSOR_SCAN_NO 7304 CONFIDENCE standard compound; INTERNAL_ID 417; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7276; ORIGINAL_PRECURSOR_SCAN_NO 7274 CONFIDENCE standard compound; INTERNAL_ID 417; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7292; ORIGINAL_PRECURSOR_SCAN_NO 7289 D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D000068760 - Serotonin and Noradrenaline Reuptake Inhibitors D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D000928 - Antidepressive Agents CONFIDENCE Parent Substance with Reference Standard (Level 1); INTERNAL_ID 1900 C78272 - Agent Affecting Nervous System > C265 - Antidepressant Agent N - Nervous system > N06 - Psychoanaleptics > N06A - Antidepressants CONFIDENCE standard compound; INTERNAL_ID 8322 CONFIDENCE standard compound; INTERNAL_ID 1502 D049990 - Membrane Transport Modulators

terbutol

Terbucarb

C17H27NO2 (277.2042)

CONFIDENCE standard compound; INTERNAL_ID 1079; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 10877; ORIGINAL_PRECURSOR_SCAN_NO 10876 CONFIDENCE standard compound; INTERNAL_ID 1079; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 10902; ORIGINAL_PRECURSOR_SCAN_NO 10901 CONFIDENCE standard compound; INTERNAL_ID 1079; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 10932; ORIGINAL_PRECURSOR_SCAN_NO 10927 CONFIDENCE standard compound; INTERNAL_ID 1079; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 10957; ORIGINAL_PRECURSOR_SCAN_NO 10956 CONFIDENCE standard compound; INTERNAL_ID 1079; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 10982; ORIGINAL_PRECURSOR_SCAN_NO 10981

Maprotiline

methyl(3-{tetracyclo[6.6.2.0²,⁷.0⁹,¹⁴]hexadeca-2,4,6,9,11,13-hexaen-1-yl}propyl)amine

C20H23N (277.183)

Maprotiline is a tetracyclic antidepressant with similar pharmacological properties to tricyclic antidepressants (TCAs). Similar to TCAs, maprotiline inhibits neuronal norepinephrine reuptake, possesses some anticholinergic activity, and does not affect monoamine oxidase activity. It differs from TCAs in that it does not appear to block serotonin reuptake. Maprotiline may be used to treat depressive affective disorders, including dysthymic disorder (depressive neurosis) and major depressive disorder. Maprotiline is effective at reducing symptoms of anxiety associated with depression. CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8225; ORIGINAL_PRECURSOR_SCAN_NO 8223 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8170; ORIGINAL_PRECURSOR_SCAN_NO 8168 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8212; ORIGINAL_PRECURSOR_SCAN_NO 8209 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8187; ORIGINAL_PRECURSOR_SCAN_NO 8185 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8233; ORIGINAL_PRECURSOR_SCAN_NO 8231 CONFIDENCE standard compound; INTERNAL_ID 835; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8247; ORIGINAL_PRECURSOR_SCAN_NO 8245 N - Nervous system > N06 - Psychoanaleptics > N06A - Antidepressants > N06AA - Non-selective monoamine reuptake inhibitors D018377 - Neurotransmitter Agents > D014179 - Neurotransmitter Uptake Inhibitors > D018759 - Adrenergic Uptake Inhibitors C78272 - Agent Affecting Nervous System > C265 - Antidepressant Agent > C94727 - Tricyclic Antidepressant D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D000928 - Antidepressive Agents D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents CONFIDENCE standard compound; EAWAG_UCHEM_ID 3317 CONFIDENCE standard compound; INTERNAL_ID 2221 D049990 - Membrane Transport Modulators

Promacyl

(3-methyl-5-propan-2-yl-phenyl) N-(2-oxopentyl)carbamate