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Dimethylamine

Also known as: dimethylamine · N-Methylmethanamine · 124-40-3 · N,N-Dimethylamine

CAS No.: 124-40-3
Formula: C2H7N
Molar mass: 45.08 g/mol
PubChem CID: 674

GHS pictograms

Flammable

Compressed gas

Corrosive

Harmful / Irritant

Health hazard

Environmental hazard

2D structure of Dimethylamine — 2D structure · PubChem CID 674

Summary

Dimethylamine (C2H7N), CAS 124-40-3. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.

Background

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Hazards

Flammable (GHS02)

Ignites easily when exposed to a flame or spark.

Compressed gas (GHS04)

Contents under pressure, may explode if heated.

Corrosive (GHS05)

Attacks skin, eyes and materials.

Harmful / Irritant (GHS07)

May cause skin, eye or respiratory irritation.

Health hazard (GHS08)

Serious long-term health effects (CMR, respiratory sensitizer).

Environmental hazard (GHS09)

Toxic to aquatic organisms.

Hazard statements

H220: Extremely flammable gas [Danger Flammable gases]
H315: Causes skin irritation [Warning Skin corrosion/irritation]
H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure
H224: Extremely flammable liquid and vapor [Danger Flammable liquids]
H302: Harmful if swallowed [Warning Acute toxicity, oral]
H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H280: Contains gas under pressure
H411
H412

Storage

Temperature

Keep at room temperature, below 30 °C, out of direct heat.

Ventilation

Store somewhere well-ventilated and away from any ignition source.

Containers

Metal drums or tinted glass, tightly sealed.

Keep away from

Strong acids, strong bases and powerful oxidizers.

Personal protective equipment

Gloves

Nitrile or butyl, at least 0.4 mm thick.

Eye protection

Safety goggles with side shields.

Respirator

A2 organic-vapor cartridge if the room isn't well ventilated.

Occupational exposure limits (HSE)

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EU harmonised classification (ECHA C&L)

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Transport

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FDA recalls & enforcement

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Compatibilities

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Practical safety notes

Flammable. Keep away from open flames, hot surfaces and sparks. Ground containers when transferring.
Compressed gas. Secure cylinders upright, protect valves, store in ventilated areas.
Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
Irritant / harmful. Ventilate the workspace and avoid skin contact.
Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
Environmental hazard. Do not release to sewers or waterways; collect for hazardous waste disposal.

Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.

FAQ

Is Dimethylamine flammable?+

Yes. Dimethylamine (CAS 124-40-3) carries the GHS02 flame pictogram. Keep it away from ignition sources, use non-sparking tools, and ground metal containers when transferring liquid.

What PPE should I wear when handling Dimethylamine?+

Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.

How should Dimethylamine be stored?+

Store Dimethylamine (CAS 124-40-3) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Use a flammable-liquid cabinet and keep away from oxidizers and heat. Segregate acids from bases and keep away from metals that can be attacked.

Is Dimethylamine dangerous for the environment?+

Yes. Dimethylamine carries the GHS09 environment pictogram. Do not release to drains, soil or waterways; collect residues for hazardous-waste disposal in line with local regulations.

Where can I find the official Safety Data Sheet for Dimethylamine?+

Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.

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