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1,2-Distearoyl-sn-glycero-3-phosphatidic acid (Na+ salt)

CATALOG # 1430


  • Catalog #:1430
  • Scientific Name:1,2-Distearoyl-sn-glycero-3-phosphatidic acid (Na+ salt)
  • Common Name:DSPA
  • Empirical Formula:C39H76O8P•Na
  • CAS#:108321-18-2
  • SDS:View Safety Data Sheet
  • Data Sheet:View Data Sheet
  • Formula Weight:727
  • Unit:100 mg
  • Solvent:none
  • Source:synthetic
  • Purity:98+%
  • Analytical Methods:TLC
  • Solubility:chloroform/methanol/acetic acid, 4:1:0.1
  • Physical Appearance:solid
  • Storage:-20°C
  • Dry Ice:No
  • Hazardous:No


Application Notes:

This phosphatidic acid is a well-defined phospholipid acylated with C18:0 fatty acids at the sn-1 and sn-2 positions. A model of an anionic phospholipid layer using 1,2-distearoyl-sn-glycero-3-phosphatidic acid has been shown to be very compact and to prevent permeation by tetraethylammonium cations.1 Phosphatidic acid (PA) is an important acidic lipid that is only found in relatively small amounts in comparison to other lipids. Phosphatidic acid acts as the precursor to a number of phospholipids and triacylglycerols, is integral in forming the shape of cellular membranes,2 has roles in cellular signaling,3 and has a role in vesicle fission and fusion. PA is generally synthesized by the acylation of glycerophosphate but can also be synthesized by the phosphorylation of 1,2-diacyl-sn-glycerol or the hydrolysis of phosphatidylcholine. PA can be converted to diacylglycerols which are important cellular signaling agents.4

1. L. Monzon and L. Yudi “Cation adsorption at a distearoylphosphatidic acid layer adsorbed at a liquid/liquid interface” Electrochemica Acta, Vol. 52(24) pp.6873-6879, 2007
2. E. Kooijman et al. “Modulation of Membrane Curvature by Phosphatidic Acid and Lysophosphatidic Acid” Traffic, Vol. 4(3) pp. 162-174, 2003
3. K. Athenstaedt and G. Daum “Phosphatidic acid, a key intermediate in lipid metabolism” European Journal of Biochemistry, Vol. 266 pp. 1-16, 1999
4. M. Hodgkin et al. “Diacylglycerols and phosphatidates: which molecular species are intracellular messengers?” Trends in Biochemical Sciences, Vol. 23(6) pp. 200-204, 1998
Price $108.00

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