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D 0261 (OTTO) 1,2-Dioleoyl-sn-glycero-3-phosphocholine, ≥99% Cas 4235-95-4 - used for the reconstitution of proteoliposome (PL). D 0261 (OTTO) 1,2-Dioleoyl-sn-glycero-3-phosphocholine, ≥99% Cas 4235-95-4 - used in the preparation of lipid vesicles.