although the chemotherapeutic agent 1- ( 2-chloroethyl ) -3-cyclohexyl-1-nitrosourea ( ccnu ) is highly unstable in aqueous suspension , polar glycerophospholipids , notably phosphatidyl choline , had a protective action on the drug 's cytotoxicity in aqueous suspension .
C0162448
glycerophospholipids
C1959616
phosphatidyl choline