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P4904

Sigma-Aldrich

β-Acetyl-γ-O-hexadecyl-L-α-phosphatidylcholine hydrate

≥98%

Synonym(s):

1-Hexadecyl-2-acetyl-sn-glycero-3-phosphocholine, 1-O-Palmityl-2-acetyl-sn-glycero-3-phosphocholine monohydrate, 2-Acetyl-1-hexadecyl-sn-glycero-3-phosphocholine, 3-sn-Phosphatidylcholine, 1-hexadecyl-2-acetyl, PAF(C16), Platelet activating factor

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About This Item

Empirical Formula (Hill Notation):
C26H54NO7P · xH2O
CAS Number:
Molecular Weight:
523.68 (anhydrous basis)
Beilstein:
3574588
MDL number:
UNSPSC Code:
12352211
PubChem Substance ID:
NACRES:
NA.77

Quality Level

Assay

≥98%

form

powder

storage temp.

−20°C

SMILES string

O.CCCCCCCCCCCCCCCCOC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(C)=O

InChI

1S/C26H54NO7P.H2O/c1-6-7-8-9-10-11-12-13-14-15-16-17-18-19-21-31-23-26(34-25(2)28)24-33-35(29,30)32-22-20-27(3,4)5;/h26H,6-24H2,1-5H3;1H2/t26-;/m1./s1

InChI key

HFMSDOHEENWULV-UFTMZEDQSA-N

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Application

β-Acetyl-γ-O-hexadecyl-L-α-phosphatidylcholine has been used:
  • to study its effects on phagocytic activity and production of superoxide anion in equine alveolar macrophage and blood neutrophils
  • to study its protective effects against cisplatin-induced cell death in a human melanoma cell line in vitro
  • to determine its effects on cervical ripening and leukocyte infiltration in rat models

Biochem/physiol Actions

β-Acetyl-γ-O-hexadecyl-L-α-phosphatidylcholine or platelet-activating factor (PAF), is a phospholipid, and a pro-inflammatory lipid mediator. It acts as a ligand for G protein-coupled platelet-activating factor (PAF) receptors and participates in several biological processes such as airway constriction, hypotension, platelet activation, and increased vascular permeability. PAF is released by various cells such as platelets, neutrophils, endothelial cells, and monocytes/macrophages. The levels of PAF are low in the blood due to its rapid metabolism by PAF acetylhydrolase and low production.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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R N Pinckard et al.
Journal of leukocyte biology, 59(2), 219-228 (1996-02-01)
Alkyl-PAF induced two components of polymorphonuclear leukocyte (PMN) priming for enhanced fMLP- and rC5a-induced superoxide anion (O2-) production. Component A priming had a shallow, linear alkyl-PAF concentration-response slope (10 pM-1 nM), and component B priming had a significantly steeper concentration-response
T Hiran et al.
Prostaglandins & other lipid mediators, 66(4), 305-315 (2002-01-12)
Platelet-activating factor (PAF) is an early product of the inflammatory environment, influencing development and resolution of inflammation. Its production is greater in neutrophils and macrophages, which predominantly synthesize 1-alkyl sn-2 acetyl glycerophosphocholine (GPC) than in nongranulocytes (B cells and endothelial
Platelet-activating factor.
S M Prescott et al.
The Journal of biological chemistry, 265(29), 17381-17384 (1990-10-15)
S Grassi et al.
Neuroscience, 94(2), 549-559 (1999-12-01)
In rat brainstem slices, we investigated the interaction between platelet-activating factor and group I metabotropic glutamate receptors in mediating long-term potentiation within the medial vestibular nuclei. We analysed the N1 field potential wave evoked in the ventral portion of the
Damien Garrido et al.
Frontiers in veterinary science, 4, 226-226 (2018-01-13)
Lipid mediators are known to play important roles in the onset and resolution phases of the inflammatory response in mammals. The phospholipid platelet-activating factor (PAF) is a pro-inflammatory lipid mediator which participates in vascular- and innate immunity-associated processes by increasing

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