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P3556

Sigma-Aldrich

L-α-Phosphatidylcholine

egg yolk, Type XVI-E, ≥99% (TLC), lyophilized powder

Synonym(s):

1,2-Diacyl-sn-glycero-3-phosphocholine, 3-sn-Phosphatidylcholine, L-α-Lecithin, Azolectin, PC

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About This Item

CAS Number:
Beilstein/REAXYS Number:
5209585
EC Number:
UNSPSC Code:
51321705
NACRES:
NA.25
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biological source

egg yolk

Quality Level

type

Type XVI-E

assay

≥99% (TLC)

form

lyophilized powder

functional group

phospholipid

lipid type

phosphoglycerides

shipped in

ambient

storage temp.

−20°C

SMILES string

[P](=O)([O-])(OC[C@H](OC(=O)CCCCCCC\C=C/C\C=C/CCCCC)COC(=O)CCCCCCCCCCCCCCC)OCC[N+](C)(C)C

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General description

Phosphatidylcholine belongs to the class of glycerophoshpolipids and contains choline as the head-group. Choline is attached to the glycerol of fatty acids ester-bound to backbone. It is the major phospholipid found in eukaryotic organism.

Application

L-α-Phosphatidylcholine has been used:
  • to form a thin lipid film used in Kupffer cell depletion by liposome-encapsulated clodronate
  • as a component of assay buffer used in γ-secretase in vitro assay
  • in the preparation of substrate mix for its use in HPLC (high performance liquid chromatography) assay of 5-lipoxygenase enzyme activity

Biochem/physiol Actions

A major structural phospholipid in brain, comprising approx. 15% of total lipid; primarily localized to gray matter.
It also acts as a source of lipid messengers/ bioactive lipids including: lysophosphatidylcholine, diacylglycerol, phosphatidic acid, lysophosphatidylcholine, arachidonic acid and platelet activating factor. Phosphatidylcholine is produced in the liver by the CDP-choline (cytidine diphosphocholine) pathway.

Packaging

Packaged under Argon

Preparation Note

Prepared by a modification of the procedure of Singleton, W.S., et al., J. Am. Oil Chem. Soc., 42, 53 (1965).

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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