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LY255283 is a specific antagonit of leukotriene B4 (LTB4) receptor. It inhibits the production of LTB(4) in human peripheral blood polymorphonuclear leukocytes (PMNL) and in monocytes activated by calcium ionophore A23187.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 2 mg | $39 | In Stock | |
| 5 mg | $81 | In Stock | |
| 10 mg | $129 | In Stock | |
| 25 mg | $263 | In Stock | |
| 50 mg | $423 | In Stock | |
| 100 mg | $679 | In Stock | |
| 200 mg | $945 | In Stock | |
| 1 mL x 10 mM (in DMSO) | $89 | In Stock |
| Description | LY255283 is a specific antagonit of leukotriene B4 (LTB4) receptor. It inhibits the production of LTB(4) in human peripheral blood polymorphonuclear leukocytes (PMNL) and in monocytes activated by calcium ionophore A23187. |
| Targets&IC50 | LTB4:100 nM (IC50, LTB4binds to guinea pig lung membranes) |
| In vivo | All seven rats given only the vehicle died within 2 h of reperfusion, whereas rats treated with LY-255283 (3 or 10 mg/kg iv), a leukotriene B4 (LTB4) receptor antagonist given 10 min before reperfusion, exhibited significantly higher survival rates of 57% (4 out of 7) and 75% (6 out of 8), respectively, 2 h after reperfusion.?Rats given 1 mg/kg of LY-255283 showed no significant improvement in survival.?Splanchnic artery occlusion (SAO)-shock rats treated with LY-255283 (3 or 10 mg/kg) exhibited significantly attenuated accumulation of plasma free amino-nitrogenous compounds and of a myocardial depressant factor.?Treatment with LY-255283 (10 mg/kg) markedly (P less than 0.01) ameliorated the deficits of endothelium-dependent relaxation of isolated superior mesenteric artery (SMA) rings in untreated SAO-shock rats.?LY-255283 at 10 mg/kg significantly attenuated the increased myeloperoxidase activity in the intestinal tissue of SAO-shock rats[1]. |
| Synonyms | LY 255283 |
| Molecular Weight | 360.45 |
| Formula | C19H28N4O3 |
| Cas No. | 117690-79-6 |
| Smiles | CCc1cc(C(C)=O)c(O)cc1OCCCCCC(C)(C)c1nn[nH]n1 |
| Relative Density. | 1.157g/cm3 |
| Color | White |
| Appearance | Solid |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 25 mg/mL (69.36 mM), Sonication is recommended. | ||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||
DMSO
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