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N-Methylethylenediamine

Also known as: 2-Aminoethylmethylamine, N-Methyldiaminoethane, N-Methylethanediamine, n-methyl-1,2-ethanediamine, n-methyl-2-ethanediamine, N1-methylethane-1,2-diamine, Ethylenediamine, N-methyl-

N-Methylethylenediamine (CAS 109-81-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C3H10N2 and a molecular weight of 74.12490 g/mol. Key properties include a boiling point of 114-117 °C(lit.), a density of 0.85 g/mL at 20 °C(lit.) and a flash point of 41.1 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
109-81-9
Jingsj CID
J-5278-8
Molecular Formula
C3H10N2
Molecular Weight
74.12490 g/mol
Category
Organic Bases
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point114-117 °C(lit.)
Density0.85 g/mL at 20 °C(lit.)
Flash Point41.1 °C
Exact Mass74.08440
PSA38.05000
LogP0.25570
Vapor Pressure19.4mmHg at 25°C
Refractive Indexn20/D 1.4395(lit.)

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2921290000
Summary2921290000 other acyclic polyamines and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N-Methylethylenediamine?

The CAS number of N-Methylethylenediamine is 109-81-9.

What are the molecular formula and molecular weight of N-Methylethylenediamine?

N-Methylethylenediamine has molecular formula C3H10N2 and molecular weight 74.12490 g/mol.

Is N-Methylethylenediamine hazardous?

N-Methylethylenediamine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of N-Methylethylenediamine?

For N-Methylethylenediamine, Upstream Products: 2-Chloroethylamine hydrochloride, Methanol, 2-Bromoethylamine hydrobromide; Downstream Products: 4-Methylpiperazin-2-one, tert-Butyl methyl(2-(2,2,2-trifluoroacetamido)ethyl)carbamate, 1-Methyl-2-imidazolidinone.

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

Last updated:

How to cite: Jingsj. "N-Methylethylenediamine (CAS 109-81-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5278-8 (accessed 2026-11-09).

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