Exact Mass: 439.224

Exact Mass Matches: 439.224

Found 500 metabolites which its exact mass value is equals to given mass value 439.224, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Leukotriene E4

(5S-(5R*,6S*(s*),7E,9E,11Z,14Z))-6-((2-amino-2-carboxyethyl)thio)-5-hydroxy-7,9,11,14-eicosatetraenoic acid

C23H37NO5S (439.2392)

Leukotriene E4 (LTE4) is a cysteinyl leukotriene. Cysteinyl leukotrienes (CysLTs) are a family of potent inflammatory mediators that appear to contribute to the pathophysiologic features of allergic rhinitis. Nasal blockage induced by CysLTs is mainly due to dilatation of nasal blood vessels, which can be induced by the nitric oxide produced through CysLT1 receptor activation. LTE4 activates contractile and inflammatory processes via specific interaction with putative seven transmembrane-spanning receptors that couple to G proteins and subsequent intracellular signaling pathways. LTE4 is metabolized from leukotriene C4 in a reaction catalyzed by gamma-glutamyl transpeptidase and a particulate dipeptidase from kidney (PMID: 12607939, 12432945, 6311078). Leukotrienes are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent and are able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis through receptor-mediated G-protein linked signaling pathways. Leukotriene E4 (LTE4) is a cysteinyl leukotriene. Cysteinyl leukotrienes (CysLTs) are a family of potent inflammatory mediators that appear to contribute to the pathophysiologic features of allergic rhinitis. Nasal blockage induced by CysLTs is mainly due to dilatation of nasal blood vessels, which can be induced by the nitric oxide produced through CysLT1 receptor activation. LTE4, activate contractile and inflammatory processes via specific interaction with putative seven transmembrane-spanning receptors that couple to G proteins and subsequent intracellular signaling pathways. LTE4 is metabolized from leukotriene C4 in a reaction catalyzed by gamma-glutamyl transpeptidase and a particulate dipeptidase from kidney. (PMID: 12607939, 12432945, 6311078)

Parsonsine

C22H33NO8 (439.2206)

Militarinone B

C26H33NO5 (439.2359)

A natural product found in Isaria farinosa.

Pivmecillinam

[(2,2-Dimethylpropanoyl)oxy]methyl (2S,5R,6R)-6-[(azepan-1-ylmethylidene)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

C21H33N3O5S (439.2141)

Pivmecillinam is only found in individuals that have used or taken this drug. It is a mecillinam prodrug, a pivaloyloxymethyl ester of amdinocillin that is well absorbed orally, but broken down to amdinocillin in the intestinal mucosa. It is active against gram-negative organisms and used as for amdinocillin. [PubChem]Pivmecillinam interferes with the biosynthesis of the bacterial cell wall however its activity is slightly different from that of other penicillins and cephalosporins J - Antiinfectives for systemic use > J01 - Antibacterials for systemic use > J01C - Beta-lactam antibacterials, penicillins > J01CA - Penicillins with extended spectrum D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D047090 - beta-Lactams D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D010406 - Penicillins D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D007769 - Lactams C254 - Anti-Infective Agent > C258 - Antibiotic > C260 - Beta-Lactam Antibiotic

O-Desmethylvenlafaxine glucuronide

(2S,3S,4S,5R,6S)-6-{4-[2-(dimethylamino)-1-(1-hydroxycyclohexyl)ethyl]phenoxy}-3,4,5-trihydroxyoxane-2-carboxylic acid

C22H33NO8 (439.2206)

O-Desmethylvenlafaxine glucuronide is a metabolite of venlafaxine (brand name: Effexor or Efexor). Venlafaxine 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 neurotransmitters in the synapse.

11-trans-LTE4

(5S,6R,7E,9E,11E,14Z)-6-{[(2R)-2-amino-2-carboxyethyl]sulfanyl}-5-hydroxyicosa-7,9,11,14-tetraenoic acid

C23H37NO5S (439.2392)

11-trans-LTE4 is also known as 11-trans-Leukotriene e4 or 11t-LTE4. 11-trans-LTE4 is considered to be practically insoluble (in water) and acidic. 11-trans-LTE4 is an eicosanoid lipid molecule