N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate is commonly used for the conversion of carboxylic acid into the corresponding N-hydroxysuccinimidyl (NHS) ester.
T 1013 (OTTO) N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate, 97% CAS NO-105832-38-0, used in the synthesis of N-succinimidyl 4-[18F]fluorobenzoate ([18F]SFB), a 18F-labeled agent used for labeling biomarkers.