Lipoxin

Lipoxin B₄
Names
	Preferred IUPAC name (5S,6E,8Z,10E,12E,14R,15S)-5,14,15-Trihydroxyicosa-6,8,10,12-tetraenoic acid
	Other names LXB4
Identifiers
CAS Number	92950-25-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:6499 ;
ChemSpider	4444430 ;
IUPHAR/BPS	5216;
PubChem CID	5280915;
CompTox Dashboard (EPA)	DTXSID701318336 ;
	InChI InChI=1S/C20H32O5/c1-2-3-8-14-18(22)19(23)15-10-7-5-4-6-9-12-17(21)13-11-16-20(24)25/h4-7,9-10,12,15,17-19,21-23H,2-3,8,11,13-14,16H2,1H3,(H,24,25)/b6-4-,7-5+,12-9+,15-10+/t17-,18+,19-/m1/s1 Key: UXVRTOKOJOMENI-WLPVFMORSA-N ; InChI=1/C20H32O5/c1-2-3-8-14-18(22)19(23)15-10-7-5-4-6-9-12-17(21)13-11-16-20(24)25/h4-7,9-10,12,15,17-19,21-23H,2-3,8,11,13-14,16H2,1H3,(H,24,25)/b6-4-,7-5+,12-9+,15-10+/t17-,18+,19-/m1/s1 Key: UXVRTOKOJOMENI-WLPVFMORBP;
	SMILES O=C(O)CCC[C@H](O)/C=C/C=C\C=C\C=C\[C@@H](O)[C@@H](O)CCCCC;
Properties
Chemical formula	C20H32O5
Molar mass	352.46508 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

A lipoxin (LX or Lx), an acronym for lipoxygenase interaction product, is a bioactive autacoid metabolite of arachidonic acid made by various cell types. They are categorized as nonclassic eicosanoids and members of the specialized pro-resolving mediators (SPMs) family of polyunsaturated fatty acid (PUFA) metabolites. Like other SPMs, LXs form during, and then act to resolve, inflammatory responses. Initially, two lipoxins were identified, lipoxin A₄ (LXA₄) and LXB₄, but more recent studies have identified epimers of these two LXs: the epi-lipoxins, 15-epi-LXA₄ and 15-epi-LXB₄ respectively.