50922-87-7 N-(2-CHLOROETHYL)-N'-(2-FLUOROETHYL)NITROSOUREA NSC93184 Urea, 1-chloroethyl-3-fluoroethyl-1-nitroso-, mixed with 3-chloroethyl-1-fluoroethyl-1- nitrosourea (1:1) Urea, 1-chloroethyl-3-fluoroethyl-1-nitroso-, mixed with 3-chloroethyl-1-fluoroethyl-1-nitrosourea (1:1) Urea, N-(2-chloroethyl)-N'-(2-fluoroethyl)nitroso-