Aromatic Polyamines & Their Derivatives and Salts

Yes. Several aromatic polyamines, including certain diaminodiphenyl compounds, are regulated under EPA's Toxic Substances Control Act (TSCA) and may require pre-manufacture or significant new use notifications. OSHA also sets permissible exposure limits for some members of this class. Importers should verify TSCA compliance and SDS requirements before entry.

The number of amine functional groups on the aromatic system is the defining criterion: one amine group places a compound in the monoamine heading, while two or more amine groups — regardless of whether they are on the same or different rings — place it in the polyamine heading. Compounds like 4,4'-methylenedianiline (MDA) with two amine groups on separate phenyl rings are classic polyamines.