Product Describtion: Phosphatidylcholines (PCs) are amphipathic molecules, which accounts for approximately 40−50% of the total cellular phospholipids. PCs are mainly located on the outer leaflets of the biological membrane bilayer. The list of Phosphatidylcholine products offered by Avanti is designed to provide compounds having a variety of physical properties. Products available include short chain (C3-C8 are water soluble and hygroscopic), saturated, multi-unsaturated and mixed acid PC′s. All of the products are purified by HPLC, and special precautions are taken to protect the products for oxidization and hydrolysis. Product Application： 09:0 PC (1,2-dinonanoyl-sn-glycero-3-phosphocholine) may be used: as an internal standard for phospholipid extraction from renal tissues using liquid chromatography coupled to electrospray ionization tandem mass spectrometry as a supplement in sample mixture as internal standard for liquid-liquid extraction and to spike the samples in order to determine lipid extract from fibroblasts by high-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC/ESI-MS/MS) an internal standard to spike frozen aliquots of plas ma in liquid chromatography with tandem mass spectrometry (LC-MS-MS)