7743-26-2 (IODIDE SALT) AIDS-156121 AIDS156121 Ethyl 4-(triphenylphosphoranyl)butanoate NSC161084 (IODIDE SALT) Phosphonium, (3-carboxypropyl)triphenyl-, ethyl ester- Phosphonium, (3-carboxypropyl)triphenyl-, iodide, ethyl ester