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

CAS Registry Number	1219795-26-2
PubChem CID	7577
Molecular formula	C13H14N2
IUPAC name	4-[(4-aminophenyl)methyl]aniline
UNII (FDA)	GG5LL7OBZC

Computed Descriptors

Molecular Weight	198.26
XLogP3	1.6
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	2
Exact Mass	198.115698455
Monoisotopic Mass	198.115698455
Topological Polar Surface Area	52
Heavy Atom Count	15
Formal Charge	0

Physical & Chemical Properties

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
Boiling Point	398 °C @760 [mm Hg]
Melting Point	197 to 198 °F (NTP, 1992)
Melting Point	92.5 °C
Melting Point	91.5-92 °C
Melting Point	198 °F
Flash Point	430 °F (NTP, 1992)

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

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS

GHS Hazard Classification

Reported hazard statements	H317, H341, H350, H370, H373, H411, H301 (14.5%), H400 (28.5%)

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.