4,4'-Methylenedianiline

Also known as: 4,4'-Diaminodiphenylmethane, bis(4-aminophenyl)methane, 4,4'-methanediyldianiline, MDA, Di(4-aminophenyl)methane, HT 972, Tonox, Tonox 22, Tonox R, Curithane, DADPM, DIANILINOMETHANE, bis(p-aminophenyl)methane, bis-p-aminophenylmethane, methylenebis(aniline), Benzenamine, 4,4'-methylenebis-, sumicurem, ancaminetl, p-Toluidine, α-(p-aminophenyl)-, MFCD00007914

4,4'-Methylenedianiline (CAS 101-77-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H14N2 and a molecular weight of 198.264 g/mol. Key properties include a melting point of 88-92 ºC, a boiling point of 398-399 ºC (768 torr), a density of 1.15 and a flash point of 221 ºC. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction, H341 — Suspected of causing genetic defects and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 101-77-9
Jingsj CID: J-1088825-2
Molecular Formula: C₁₃H₁₄N₂
Molecular Weight: 198.264 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	88-92 ºC
Boiling Point	398-399 ºC (768 torr)
Density	1.15
Flash Point	221 ºC
Exact Mass	198.115692
PSA	52.04000
LogP	1.64
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.660

GHS Safety & Compliance

Irritant / Health Hazard / Environmental HazardSignal word: Danger

H317 — May cause an allergic skin reaction
H341 — Suspected of causing genetic defects
H350 — May cause cancer
H370 — Causes damage to organs
H373 — May cause damage to organs through prolonged exposure
H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code	2921590033
Summary	2921590033 4,4'-methylenedianiline。supervision conditions:x(environment control release notice for poisonous chemicals)。VAT:17.0%。tax rebate rate:13.0%。MFN tarrif:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-Methylenedianiline?

The CAS number of 4,4'-Methylenedianiline is 101-77-9.

What are the molecular formula and molecular weight of 4,4'-Methylenedianiline?

4,4'-Methylenedianiline has molecular formula C13H14N2 and molecular weight 198.264 g/mol.

Is 4,4'-Methylenedianiline hazardous?

4,4'-Methylenedianiline has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H341 — Suspected of causing genetic defects; H350 — May cause cancer.

What are the upstream and downstream products of 4,4'-Methylenedianiline?

For 4,4'-Methylenedianiline, Upstream Products: Bis(4-nitrophenyl)methane, Formaldehyde, 4,4'-Diacetamidodiphenylmethane; Downstream Products: Diphenyl (methylenedi-4,1-phenylene)dicarbamate, Bis(4-fluorophenyl)methane, 4,4'-Diphenylmethane diisocyanate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4,4'-Methylenedianiline (CAS 101-77-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1088825-2 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.