122665-73-0 4-((2-Chloroethyl)(2-mesyloxyethyl)amino)benzoylglutamic acid 4-Cema-benzoyl-glutamic acid L-Glutamic acid, N-(4-((2-chloroethyl)(2-((methylsulfonyl)oxy)ethyl)amino)benzoyl)- N-(4-((2-Chloroethyl)(2-((methylsulfonyl)oxy)ethyl)amino)benzoyl)-L-glutamic acid