Synonyms: Urea,N-(2-chloroethyl)-N'-[2,3-O-(1-methylethylidene)- 5-O-(4-nitrobenzoyl)-Dribofuranosyl]- N-nitroso-;Urea, N-(2-chloroethyl)-N-[2, 3-O-(1-methylethylidene)-5-O-(4-nitrobenzoyl)-D-ribofuranosyl]-N-n itroso-;Bofumustine;Furo[3,4-d]-1,3-dioxole, urea deriv.;[2-[(2-chloroethyl-nitroso-carbamoyl)amino]-7,7-dimethyl-3,6,8-trioxabicyclo[3.3.0]oct-4-yl]methyl 4-nitrobenzoate;ICIG 1105;(CHLORO-2-ETIL)-1-(RIBOFURANOSILISOPROPILIDENE-2′,3′-PARANITROBENZOATO)-3-NITROSOUREA;(CHLORO-2-ETHYL)-1-(RIBOFURANOSYLISOPROPY-LIDENE-2′-3′-PARANITROBENZOATE-5′)-3-NITROSOUREA;I.C.I.G. 1105;