1-((4-(Fluoro-18F)benzoyl)oxy)-2,5-pyrrolidinedione 141762-27-8 2,5-Pyrrolidinedione, 1-((4-(fluoro-18F)benzoyl)oxy)- N-Succinimidyl-4-(18F)fluorobenzoate N-Succinimidyl-4-fluorobenzoate Nsm-FB