Description

4,4′-Methylenebis(2-ethyl-6-methylbenzenamine) (CAS No. 19900-72-2) is a high-purity aromatic diamine with the molecular formula C₁₉H₂₆N₂. This compound, also known by its IUPAC name 4-[(4-amino-3-ethyl-5-methylphenyl)methyl]-2-ethyl-6-methylaniline, is a versatile intermediate widely used in polymer synthesis and specialty chemical applications. Its bifunctional amine groups make it an excellent curing agent for epoxy resins, polyurethanes, and other thermosetting polymers, offering enhanced thermal and mechanical properties. The presence of ethyl and methyl substituents on the aromatic rings contributes to its unique reactivity and solubility profile. Our product is rigorously tested to ensure >98% purity (HPLC) and is supplied as a light-colored crystalline solid with minimal moisture content. Suitable for research, industrial, and pharmaceutical applications, it is packaged under inert gas to ensure stability and longevity.

Properties

• CAS Number: 19900-72-2
• Complexity: 287
• IUPAC Name: 4-[(4-amino-3-ethyl-5-methyl-phenyl)methyl]-2-ethyl-6-methyl-aniline
• InChI: InChI=1S/C19H26N2/c1-5-16-10-14(7-12(3)18(16)20)9-15-8-13(4)19(21)17(6-2)11-15/h7-8,10-11H,5-6,9,20-21H2,1-4H3
• InChI Key: QJENIOQDYXRGLF-UHFFFAOYSA-N
• Exact Mass: 282.209598838
• Molecular Formula: C19H26N2
• Molecular Weight: 282.4
• SMILES: CCC1=C(C(=CC(=C1)CC2=CC(=C(C(=C2)C)N)CC)C)N
• Topological: 52
• Monoisotopic Mass: 282.209598838
• Synonyms: 4,4′-Methylenebis(2-ethyl-6-methylaniline), Benzenamine, 4,4′-methylenebis[2-ethyl-6-methyl-, CCRIS 3325, 4,4′-Methylene-bis(2-ethyl-6-methylaniline), 4,4′-Methylenebis(2-methyl-6-ethylaniline), UNII-2397GNR8K7, 4,4′-Methylenebis(2-ethyl-6-methylbenzenamine), 2397GNR8K7, Bis(4-amino-3-ethyl-5-methylphenyl)methane, DTXSID10173678, 4,4′-METHYLENEBIS(6-ETHYL-O-TOLUIDINE), 3,3′-diethyl-5,5′-dimethyl-4,4′-diaminodiphenylmethane, BENZENAMINE, 4,4′-METHYLENEBIS(2-ETHYL-6-METHYL-, DTXCID3096169, 672-703-6, 19900-72-2, 4,4-Methylenebis(2-Ethyl-6-Methylaniline), MFCD00071555, 4-[(4-amino-3-ethyl-5-methylphenyl)methyl]-2-ethyl-6-methylaniline, 4,4′-Methylene-bis(2-methyl-6-ethylaniline), SCHEMBL48397, QJENIOQDYXRGLF-UHFFFAOYSA-N, AKOS015839114, CS-W012259, SB82331, AC-24000, BS-16376, SY053273, DB-045026, M1238, 4,4/’-Methylenebis(2-ethyl-6-methylaniline), 4,4′-Methylenebis(2-ethyl-6-methylaniline), D78071, 4,4′-Methylenebis-(5-ethyl-2-methylbenzenamine), Q27253733, 4,4′-Diamino-3,3′-diethyl-5,5′-dimethyldiphenylmethane, 4,4 inverted exclamation mark -Methylenebis(2-ethyl-6-methylaniline), 4 pound not4 inverted exclamation mark -Methylene-bis(2-methyl-6-ethylaniline)

Application

4,4′-Methylenebis(2-ethyl-6-methylbenzenamine) is primarily employed as a curing agent in epoxy resin formulations, where it imparts high crosslink density and thermal resistance. It also serves as a key intermediate in the synthesis of polyimide and polyurethane polymers for aerospace and automotive coatings. In pharmaceutical research, it is investigated as a building block for active pharmaceutical ingredients (APIs) due to its aromatic amine functionality.

Safety and Hazards

GHS Hazard Statements

• H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (100%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]

Precautionary Statements

• P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P321, P330, P332+P317, P337+P317, P362+P364, and P501

Hazard Classes and Categories

• Acute Tox. 4 (100%)
• Acute Tox. 4 (100%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• Acute Tox. 4 (100%)

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