M 2067 (OTTO) N,N′-Methylenebis(acrylamide), GR 99% Cas no 110-26-9 - used as a cross linking agent that polymerizes with acrylamide and creates cross links within the polyacrylamide gel. It is capable of creating a network rather than linear chains which helps in maintaining the firmness of gel. M 2067 (OTTO) N,N′-Methylenebis(acrylamide), GR 99% Cas no 110-26-9 - used in biochemistry as it is one of the compounds of the polyacrylamide gel.