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Dimethylamine

Also known as: N-Methylmethanamine, Methanamine, N-methyl-, Me2NH

Dimethylamine (CAS 124-40-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C2H7N and a molecular weight of 45.084 g/mol. Key properties include a melting point of −93 °C(lit.), a boiling point of 6.1±3.0 °C at 760 mmHg, a density of 0.6±0.1 g/cm3 and a flash point of -56.1±8.8 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
124-40-3
Jingsj CID
J-47969-5
Molecular Formula
C2H7N
Molecular Weight
45.084 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−93 °C(lit.)
Boiling Point6.1±3.0 °C at 760 mmHg
Density0.6±0.1 g/cm3
Flash Point-56.1±8.8 °C
Exact Mass45.057850
PSA12.03000
LogP-0.43
Additional Property1.55 (vs air)
Vapor Pressure1520.3±0.0 mmHg at 25°C
Refractive Index1.344

GHS Safety & Compliance

Flammable / Corrosion / Acute Toxicity / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H331 — Toxic if inhaled
  • H370 — Causes damage to organs

Customs & Trade Information

HS Code2921110010
Summary2921110010 dimethylamine。supervision conditions:23(import license for dual-use item and technologies,export license for dual-use item and technologies)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of Dimethylamine?

The CAS number of Dimethylamine is 124-40-3.

What are the molecular formula and molecular weight of Dimethylamine?

Dimethylamine has molecular formula C2H7N and molecular weight 45.084 g/mol.

Is Dimethylamine hazardous?

Dimethylamine has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

What are the upstream and downstream products of Dimethylamine?

For Dimethylamine, Upstream Products: Dimethylamine hydrochloride, Methanol, Tetrakis(dimethylamino)diboron; Downstream Products: R-N-Boc-3-dimethylaminopiperidine, 4-Bromo-3-methoxy-N,N-dimethylbenzamide, 1,4-Bis(dimethylamino)-2-butyne.

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

Last updated:

How to cite: Jingsj. "Dimethylamine (CAS 124-40-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47969-5 (accessed 2026-11-07).

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