Leukotriene B4

~100 μg/mL in ethanol, ≥97%

5S,12R-Dihydroxy-6Z,8E,10E,14Z-eicosatetraenoic acid
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level




~100 μg/mL in ethanol

shipped in

dry ice

storage temp.


SMILES string




InChI key


Gene Information

human ... LTB4R(1241)
rat ... Ltb4r(59264)

Looking for similar products? Visit Product Comparison Guide

Biochem/physiol Actions

Proinflammatory agent. Stimulates c-Fos and c-Jun proto-oncogene transcription in human monocytes. Stimulates chemotaxis, aggregation, and degranulation of polymorphonuclear leukocytes.

Features and Benefits

This compound is featured on the Leukotriene Receptors and Nuclear Receptors (PPARs) pages of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.


Data sheet which accompanies each product includes special handling instructions. Except where noted, method for hydrolysis of methyl esters is also described.


FlameExclamation mark

Signal Word


Hazard Statements

Hazard Codes


Risk Statement


Safety Statement



UN1170 - class 3 - PG 2 - Ethanol, solution

WGK Germany


Flash Point(F)

57.2 °F - closed cup

Flash Point(C)

14.0 °C - closed cup

Romy R M C Keijsers et al.
The Journal of investigative dermatology, 134(5), 1276-1284 (2013-12-10)
Clinical trials successfully using antibodies targeting IL-17 in psoriasis support the importance of IL-17 in the pathophysiology of this disease. However, there is a debate concerning the source and dynamics of IL-17 production in inflamed skin. Here we characterized IL-17-producing...
Ellen Tufvesson et al.
International journal of chronic obstructive pulmonary disease, 12, 3211-3219 (2017-11-16)
The presence of bacteria in the lower airways in COPD results in inflammation, further airway structural damage, and might lead to repeated exacerbations. We have previously shown that chronic colonization of
Lloyd Tanner et al.
Journal of innate immunity, 12(3), 203-225 (2019-09-19)
Chronic obstructive pulmonary disease (COPD) affects the lives of an ever-growing number of people worldwide. The lack of understanding surrounding the pathophysiology of the disease and its progression has led to COPD becoming the third leading cause of death worldwide....
Preeti Subramanian et al.
Investigative ophthalmology & visual science, 57(11), 4581-4588 (2016-09-17)
5-Lipoxygenase (5-LOX) oxygenates arachidonic acid to form 5-hydroperoxyeicosatetraenoic acid, which is further converted into biologically detrimental leukotrienes, such as leukotriene B4 (LTB4). The RPE and retina express the PNPLA2 gene for pigment epithelium-derived factor receptor (PEDF-R), a lipase involved in...
H E Claesson et al.
International journal of immunopharmacology, 14(3), 441-449 (1992-04-01)
Leukotriene (LT) B4 is a biologically active molecule derived from arachidonic acid via the 5-lipoxygenase pathway. It mediates certain inflammatory and immunological reactions. The role of LTB4 in the immune system has been questioned since lymphocytes have been regarded to...
Related Content
Discover Bioactive Small Molecules for Lipid Signaling Research
Read More

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.