3,3'-Methylenedianiline

3,3'-甲撑二苯胺

Also known as: 3,3'-Diaminodiphenylmethane, 3,3'-Methylenebis(aniline), 3,3'-Methylenebis(benzenamine), 3,3'-diaminophenylmethane, 3-[(3-aminophenyl)methyl]aniline, 3-(3-aminobenzyl)phenylamine, Benzenamine, 3,3'-methylenebis-

3,3'-Methylenedianiline (CAS 19471-12-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C13H14N2 and a molecular weight of 198.264 g/mol. It is also known as 3,3'-Diaminodiphenylmethane, 3,3'-Methylenebis(aniline) and 3,3'-Methylenebis(benzenamine). Key properties include a melting point of 81-84 °C(lit.), a boiling point of 398.1±22.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 232.6±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19471-12-6
Jingsj CID
J-48787-4
Molecular Formula
C13H14N2
Chinese Name
3,3'-甲撑二苯胺
Molecular Weight
198.264 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point81-84 °C(lit.)
Boiling Point398.1±22.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point232.6±21.8 °C
Exact Mass198.115692
PSA52.04000
LogP1.64
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.660

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation
  • H351 — Suspected of causing cancer

Customs & Trade Information

HS Code2921590090
Summary2921590090. other aromatic polyamines and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,3'-Methylenedianiline?

The CAS number of 3,3'-Methylenedianiline is 19471-12-6.

What are the molecular formula and molecular weight of 3,3'-Methylenedianiline?

3,3'-Methylenedianiline has molecular formula C13H14N2 and molecular weight 198.264 g/mol.

Is 3,3'-Methylenedianiline hazardous?

3,3'-Methylenedianiline has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 3,3'-Methylenedianiline?

For 3,3'-Methylenedianiline, Upstream Products: nitrobenzene; Downstream Products: 3,3'-Methylenedibenzonitrile.

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

Last updated:

How to cite: Jingsj. "3,3'-Methylenedianiline (CAS 19471-12-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48787-4 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.