BP Lipid 148 is an amino lipid which has a long (11 carbons) lipid tail on the primary ester located at C7 relative to nitrogen amine. The head contains propanolamine which can efficiently encapsulate mRNA. The secondary ester is introduced, on the ester located at C8 position relative to amine, to improve protein expression in the liver. The lipid can be used to prepare mRNA nanocarriers with good balance of delivery efficiency and pharmakokinetics as well as rapid lipid clearance profile. Reagent grade, for research purpose.