N,N'-Diallyl-L-tartardiamide
# N,N'-Diallyl-L-tartardiamide

N,N′-Diallyl-L-tartardiamide (DATD) is a crosslinking agent for polyacrylamide gels, e.g., as used for SDS-PAGE. Compared to bisacrylamide gels, DATD gels have a stronger interaction with glass, and therefore are used in applications where the polyacrylamide gel acts as a "plug" structural component at the bottom of a gel electrophoresis apparatus, thereby preventing a weak discontinuous gel from sliding out from or otherwise moving within the apparatus. Unlike bisacrylamide-polyacrylamide gels, DATD-polyacrylamide gels can be conveniently dissolved using periodic acid due to the presence of viscinal diols in DATD. DATD is the slowest polyacrylamide crosslinker tested, and has can act as an inhibitor of polymerization at high concentrations.

