4,4-二氨基二苯甲烷

Description

4,4-Diaminodiphenylmethane · CAS 1219795-26-2 · C13H14N2. UNII GG5LL7OBZC. Boiling Point: 748 to 750 °F at 768 mmHg (NTP, 1992); Boiling Point: 398 °C; Boiling Point: at 102kPa: 398-399 °C.

Identification

Computed Descriptors

Physical & Chemical Properties

Physical description & handling notes

• 4,4'-diaminodiphenylmethane appears as a 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.
• Dry Powder; Large Crystals
• Pale-brown, crystalline solid with a faint, amine-like odor; [NIOSH]
• Solid
• COLOURLESS-TO-PALE-YELLOW FLAKES WITH CHARACTERISTIC ODOUR. TURNS DARK ON EXPOSURE TO AIR.
• Pale-brown, crystalline solid with a faint, amine-like odor.

Regulatory Status

GHS Hazard Classification

Documented Uses

• MDA is primarily used to produce 4,4-'methylenedianiline diisocyanate and other polymeric isocyanates which are used to manufacture polyurethane foams. MDA is also used as a curing agent for epoxy resins and urethane elastomers, as a corrosion preventative for iron, as an antioxidant for lubricating oils, as a rubber processing chemical, as an intermediate in the manufacture of elastomeric fibers (e.g., Spandex), and in the preparation of azo dyes.
• Used as a chemical intermediate, lab analytic agent, and monomer for polyamide and polymide resins; [HSDB] Used primarily in the manufacture of rubber and plastics; used as an epoxy resin hardener in the following applications: glues, paints, inks, polyvinylchloride products, dental bonding agents, and microelectronic encapsulations; [Marks, p. 269]
• Carcinogen--See 29 CFR 1910.1050
• Plastic Composites Manufacturing [Category: Industry]
• As chemical intermediate in prodn of isocyanates and polyisocyanates for prepn of polyurethane foams, Spandex fibers; as curing agent for epoxy resins and urethane elastomers; in production of polyamides; in the determination of tungsten and sulfates; in prepn of azo dyes; as corrosion inhibitor.
• Determination of tungsten and sulfates, polymer and dye intermediate, corrosion inhibitor, epoxy-resin hardening agent, isocyanate resins, polyamides.

Synonyms

4,4'-Methylenedianiline; 101-77-9; 4,4'-DIAMINODIPHENYLMETHANE; Dadpm; Methylenedianiline; 4-[(4-aminophenyl)methyl]aniline; Bis(4-aminophenyl)methane; Dianilinemethane; Dianilinomethane; p,p'-Methylenedianiline; Epicure DDM; Epikure DDM; Curithane; 4-(4-Aminobenzyl)aniline; Benzenamine, 4,4'-methylenebis-; Jeffamine AP-20

Frequently Asked Questions

What are the CAS number and molecular formula of 4,4-Diaminodiphenylmethane?

CAS 1219795-26-2; molecular formula C13H14N2; molecular weight — g/mol.

What other names is 4,4-Diaminodiphenylmethane known by?

4,4'-Methylenedianiline, 101-77-9, 4,4'-DIAMINODIPHENYLMETHANE, Dadpm, Methylenedianiline, 4-[(4-aminophenyl)methyl]aniline.

What is the regulatory status of 4,4-Diaminodiphenylmethane?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is 4,4-Diaminodiphenylmethane classified as hazardous?

Hazard statements reported: H317, H341, H350, H370, H373.

What are the key physical properties of 4,4-Diaminodiphenylmethane?

Boiling Point: 748 to 750 °F at 768 mmHg (NTP, 1992); Boiling Point: 398 °C; Boiling Point: at 102kPa: 398-399 °C; Boiling Point: 748 °F.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.