4,4'-메틸렌디아닐린

4,4-Diaminodiphenylmethane is a pale yellow crystalline solid (turns light brown on contact with air) with a faint amine-like odor that is unstable in the presence of light or air and emits toxic fumes of aniline and nitrogen oxides when heated to decomposition. 4,4'-Methylenedianiline is primarily used in industry as a chemical intermediate in the production of 4,4-methylenedianiline diisocyanates and polyisocyanates, but is also used as a cross-linking agent for the determination of tungsten and sulfates, and as a corrosion inhibitor. Exposure to this substance irritates the skin and eyes and causes liver damage. 4,4'-Methylenedianiline is reasonably anticipated to be a human carcinogen. (NCI05)

개요4,4'-Methylenedianiline is an industrial chemical that is not known to occur naturally. It is also commonly known as diaminodiphenylmethane or MDA. It occurs as a colorless to pale yellow solid and has a faint odor. 4,4'-Methylenedianiline is used mainly for making polyurethane foams, which have a variety of uses, such as insulating materials in mailing containers. It is also used for making coating materials, glues, Spandex fiber, dyes, and rubber. 4,4'-Methylenedianiline is also a by-product of azo dyes. It is also possibly formed by hydrolysis of diphenylmethane-4A'-diisocyanate.

용도4,4'-methylenedianiline be used as organic intermediates. Mainly used for the synthesis of polyimide and as curing agent of epoxy resin.

일반 설명A tan flake or lump solid with a faint fishlike odor. May be toxic by inhalation or ingestion, and may be irritating to skin. Insoluble in water.

정의ChEBI: 4,4'-Methylenedianiline is an aromatic amine that is diphenylmethane substituted at the 4-position of each benzene ring by an amino group. It is primarily used in industry as a chemical intermediate in the production of 4,4-methylenedianiline diisocyanates and polyisocyanates.