Catalog No. Size PriceQuantity
M7311-2 2mg solid $100
M7311-10 10mg solid $325


LY255283 is selective, competitive antagonist of BLT2 receptors (IC50 values are ~ 1 and > 10 μM at human recombinant BLT2 and BLT1 receptors respectively), and inhibits LTB4-induced contraction of lung parenchyma (pA2 = 7.2), and reduces LTB4-mediated airway obstruction in guinea pigs following i.v. and oral administration.

Product information

CAS Number: 117690-79-6

Molecular Weight: 360.45

Formula: C19H28N4O3

Chemical Name: (1-(5-Ethyl-2-hydroxy-4-(6-methyl-6-(1H-tetrazol-5-yl)heptyloxy)phenyl)ethanone)

Smiles: CC(=O)C1=CC(CC)=C(C=C1O)OCCCCCC(C)(C)C1NN=NN=1


InChi: InChI=1S/C19H28N4O3/c1-5-14-11-15(13(2)24)16(25)12-17(14)26-10-8-6-7-9-19(3,4)18-20-22-23-21-18/h11-12,25H,5-10H2,1-4H3,(H,20,21,22,23)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO: 72 mg/mL(199.75 mM). Water: Insoluble.

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200


  1. R M Schultz, et al. Effects of two leukotriene B4 (LTB4) receptor antagonists (LY255283 and SC-41930) on LTB4-induced human neutrophil adhesion and superoxide production. Prostaglandins Leukot Essent Fatty Acids. 1991 Aug;43(4):267-71.
  2. S A Silbaugh, et al. Pulmonary actions of LY255283, a leukotriene B4 receptor antagonist. Eur J Pharmacol. 1992 Nov 13;223(1):57-64.
  3. P S Wollert, et al. LY255283, a novel leukotriene B4 receptor antagonist, limits activation of neutrophils and prevents acute lung injury induced by endotoxin in pigs. Surgery. 1993 Aug;114(2):191-8.
  4. Eun-Young Kim, et al. BLT2 promotes the invasion and metastasis of aggressive bladder cancer cells through a reactive oxygen species-linked pathway. Free Radic Biol Med. 2010 Sep 15;49(6):1072-81.
  5. M Uğur, M Melli.Inhibitory effect of LY 255283 on the synthesis of leukotriene B(4) and thromboxane A(2) in human peripheral blood polymorphonuclear leukocytes and monocytes.Mediators Inflamm. 1993;2(6):407-9.

Products are for research use only. Not for human use.

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