A synthetic phosphatidylcholine; contains containing the short-chain (7:0) heptanoic acid at the sn-1 and sn-2 positions; commonly used in the formation of lipid bilayers and mixed micelles (CMC = 1.6 mM); increases the formation rate of substrate-supported planar phospholipid bilayers on glass and silica; inhibits insulin fibril formation in vitro in a concentration-dependent manner; inhibits cytotoxicity induced by insulin fibril formation in PC12 and SH-SY5Y cells at 0.5-4 mM