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2,4,5-Trimethylaniline

Also known as: Pseudocumidine, 2,4,5-Trimethylbenzenamine, 2,4,5-Trimethylphenylamine, Benzenamine,2,4,5-trimethyl-, 5-amino-1,2,4-trimethylbenzene, PSI-CUMIDINE, NSC 37004, NSC 5297

2,4,5-Trimethylaniline (CAS 137-17-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C9H13N and a molecular weight of 135.206 g/mol. Key properties include a melting point of 62 °C, a boiling point of 234.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 102.9±14.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
137-17-7
Jingsj CID
J-28764-7
Molecular Formula
C9H13N
Molecular Weight
135.206 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point62 °C
Boiling Point234.5±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point102.9±14.0 °C
Exact Mass135.104797
PSA26.02000
LogP2.32
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.553
Storage Conditions2-8°C
StabilityStable. Combustible. Incompatible with strong oxidizing agents.

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2921430090
SummaryHS:2921430090 toluidines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4,5-Trimethylaniline?

The CAS number of 2,4,5-Trimethylaniline is 137-17-7.

What are the molecular formula and molecular weight of 2,4,5-Trimethylaniline?

2,4,5-Trimethylaniline has molecular formula C9H13N and molecular weight 135.206 g/mol.

Is 2,4,5-Trimethylaniline hazardous?

2,4,5-Trimethylaniline has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of 2,4,5-Trimethylaniline?

For 2,4,5-Trimethylaniline, Upstream Products: 1,2,4-Trimethyl-5-nitrobenzene, 1,2,4-TRIMETHYL BENZENE, N,N-Dimethyl-m-toluidine; Downstream Products: 2,4,5-Trimethylphenol, 1-bromo-2,4,5-trimethylbenzene, 1,2,4-TRIMETHYLCYCLOHEXANE.

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

Last updated:

How to cite: Jingsj. "2,4,5-Trimethylaniline (CAS 137-17-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28764-7 (accessed 2026-11-06).

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