3334381 PyPC 1-Acyl-2-(10-(1-pyrenyl)decanoyl)-sn-glycero-3-phosphocholine 1 3334379 PyPC 2-(10-(1-pyrene)-decanoyl)-phosphatidylcholine 1 3334382 PyPC phosphatidylcholine 1 3334384 PyPC pyrene labelled on the fatty acid tail group 1 3334380 PyPC Pyrene phosphatidylcholine 1