Sigma-Aldrich 44924 L-α-Phosphatidylcholine suitable for microbiology, Surfactant and constituent of the liposomal carrier system 500 gr
Marka
Stok Kodu
LB.SA.44924-500G
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Sigma-Aldrich 44924 L-α-Phosphatidylcholine suitable for microbiology, Surfactant and constituent of the liposomal carrier system 500 gr |
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Synonym(s): Stannous chloride dihydrate
Linear Formula: SnCl2 · 2H2O
CAS Number: 10025-69-1
Molecular Weight: 225.65
EC Number: 231-868-0
MDL number: MFCD00149863
PubChem Substance ID: 329752035
NACRES: NA.21
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PROPERTIES
biological source soybean
Quality Level 200
assay ≥40% (phosphatidylcholine, TLC), ≥95% (phosphatides (as acetone insolubles))
form powder
mol wt observed mol wt 790.15 g/mol
acid value ≤35 mg KOH/g
peroxide value ≤5 meq/kg
application(s) microbiology
InChI 1S/C42H80NO8P/c1-6-8-10-12-14-16-18-20-21-23-25-27-29-31-33-35-42(45)51-40(39-50-52(46,47)49-37-36-43(3,4)5)38-48-41(44)34-32-30-28-26-24-22-19-17-15-13-11-9-7-2/h14,16,20-21,40H,6-13,15,17-19,22-39H2,1-5H3/b16-14-,21-20-/t40-/m1/s1
InChI key JLPULHDHAOZNQI-ZTIMHPMXSA-N
DESCRIPTION
General description
This L-α-phosphatidylcholine is extracted and purified from soybeans. It serves as a substrate for specific phospholipase present in all Listeria monocytogenes and some strains of Listeria ivanovii. If L-α-phosphatidylcholine is used in a solid medium the presence of organisms possessing the specific phospholipase can be detected. The phosphatidylcholine is cleaved which results in a precipitate which can be seen as opaque halo around the colonies.
Application
L-α-Phosphatidylcholine is one of several phospholipids used in membrane research and is often used as a component in liposomal drug delivery systems. In this case it is added to culture media to differentiate the specific phospholipase producing microorganisms from those that cannot.
Biochem/physiol Actions
A major structural phospholipid in brain, comprising approx. 15% of total lipid; primarily localized to gray matter. |