N,N′-Methylenebis(acrylamide)

N,N′-Methylenebis(acrylamide), commonly abbreviated as BIS or bisacrylamide and also known by the trade name NAPP, is a bifunctional acrylamide monomer with CAS number 110-26-9. It carries no E-code designation and is classified under HS code 29241900 within the broader monomers and building blocks category.

In polyacrylamide gel production, BIS acts as a crosslinking agent by bridging adjacent acrylamide polymer chains through its two reactive vinyl groups, controlling gel pore size and mechanical strength. In personal care formulations, it functions as a rheology modifier and skin conditioner, contributing to network structure in hydrogel matrices used in topical products.

This material is supplied as a white crystalline powder meeting REACH registration requirements for the European market. Standard packaging formats are available for laboratory and industrial procurement volumes. Buyers should confirm grade specifications against relevant polymer or cosmetic application standards prior to ordering.