Description

4,4′-Methylenebis(2-ethylbenzamine) (CAS No. 19900-65-3) is a high-purity aromatic diamine with the molecular formula C₁₇H₂₂N₂. This compound, also known by its IUPAC name 4-[(4-amino-3-ethylphenyl)methyl]-2-ethylaniline, is a versatile intermediate widely used in polymer chemistry and specialty material synthesis. Its unique structure, featuring two ethyl-substituted aromatic rings bridged by a methylene group, makes it an excellent curing agent for epoxy resins, contributing to enhanced thermal and mechanical properties in the final product. Suitable for research and industrial applications, this diamine is supplied as a crystalline solid with a defined purity grade to ensure consistent performance in your formulations. Store in a cool, dry place away from light and moisture to maintain stability.

Properties

• CAS Number: 19900-65-3
• Complexity: 240
• IUPAC Name: 4-[(4-amino-3-ethyl-phenyl)methyl]-2-ethyl-aniline
• InChI: InChI=1S/C17H22N2/c1-3-14-10-12(5-7-16(14)18)9-13-6-8-17(19)15(4-2)11-13/h5-8,10-11H,3-4,9,18-19H2,1-2H3
• InChI Key: CBEVWPCAHIAUOD-UHFFFAOYSA-N
• Exact Mass: 254.178298710
• Molecular Formula: C17H22N2
• Molecular Weight: 254.37
• SMILES: CCC1=C(C=CC(=C1)CC2=CC(=C(C=C2)N)CC)N
• Topological: 52
• Monoisotopic Mass: 254.178298710
• Physical Description: Light yellow to brown oily liquid;
• Synonyms: 19900-65-3, 4,4′-Methylenebis(2-ethylaniline), 4,4′-Methylenebis(2-ethylbenzenamine), Mboea, Benzenamine, 4,4′-methylenebis[2-ethyl-, Bis(4-amino-3-ethylphenyl)methane, 4,4′-Methylenebis(2-ethylbenzamine), 4,4′-Methylenebis(o-ethylaniline), EINECS 243-420-1, BRN 2856397, DIMETHYLDICYKAN, Y12TKY67B0, Benzenamine, 4,4′-methylenebis(2-ethyl-, RUTAPOX SL, EPORESIT T-58, Aniline, 4,4′-methylenebis(o-ethyl-, LAROMIN C260, EPICURE 113, ANCAMINE 2049, LAROMIN C 260, LAROMIN C-260, JER CURE 113, DTXSID2051841, CIBA 2976, METHYLENEBIS(2-ETHYLBENZENAMINE), 4,4′-, 4,4′-Methylenebis[2-ethylbenzenamine], ACETOCURE MBOEA, Bis(4amino3ethylphenyl)methane, DTXCID3030397, 4,4’Methylenebis(oethylaniline), 4,4’Methylenebis(2ethylaniline), Aniline, 4,4’methylenebis(oethyl, Benzenamine, 4,4’methylenebis(2ethyl, 4,4’Diamino3,3’diethyldiphenylmethane, 243-420-1, 4-[(4-amino-3-ethylphenyl)methyl]-2-ethylaniline, UNII-Y12TKY67B0, 4-[(4-amino-3-ethyl-phenyl)methyl]-2-ethyl-aniline, MFCD00128916, SCHEMBL237448, CBEVWPCAHIAUOD-UHFFFAOYSA-N, AKOS015964370, FM55213, 2,2′-diethyl-4,4′-methylenedianiline, 4,4/’-Methylenebis(2-ethylbenzenamine), AC-18375, BS-21928, 4,4′-diamino-3,3′-diethyldiphenylmethane, DB-065989, CS-0152552, M3167, NS00019955, Q27294116

Application

4,4′-Methylenebis(2-ethylbenzamine) is primarily used as a curing agent for epoxy resins, imparting high thermal stability and mechanical strength to composites. It finds applications in advanced coatings, adhesives, and electrical encapsulation materials due to its excellent cross-linking properties. Researchers also utilize this diamine in the synthesis of polyimide precursors and other high-performance polymers for aerospace and automotive industries.

Safety and Hazards

GHS Hazard Statements

• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H351: Suspected of causing cancer [Warning Carcinogenicity]
• H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P203, P264, P270, P273, P280, P301+P317, P318, P330, P391, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (94.4%)
• Carc. 2 (94.4%)
• Aquatic Acute 1 (94.4%)
• Aquatic Chronic 1 (94.4%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.