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Merck
CN

P4904

Platelet Activating Factor-16

≥98%, pro-inflammatory lipid mediator, powder

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:
74389-68-7
Molecular Weight:
523.68 (anhydrous basis)
UNSPSC Code:
12352211
PubChem Substance ID:
24898570
NACRES:
NA.77
Beilstein/REAXYS Number:
3574588
MDL number:
MFCD00150679
Assay:
≥98%
Form:
powder
Quality level:
200

Key Documents

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Product Name

β-Acetyl-γ-O-hexadecyl-L-α-phosphatidylcholine hydrate, ≥98%

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

assay

≥98%

form

powder

storage temp.

−20°C

Quality Level

200

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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

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN5871
BCCN0535
BCCG8643
BCCG4701
BCCB6898

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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
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
Platelet-activating factor.
S M Prescott et al.
The Journal of biological chemistry, 265(29), 17381-17384 (1990-10-15)
L Callea et al.
Journal of neuroimmunology, 94(1-2), 212-221 (1999-06-22)
Platelet-activating factor (PAF) is a phospholipid mediator of inflammation with a wide range of biological activities, including the alteration of barrier function of endothelium. A biological assay combined with high pressure liquid chromatography-tandem mass spectrometry showed that plasma and cerebral
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