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Trimethylamine

Also known as: trimethylamine · N,N-dimethylmethanamine · 75-50-3 · Methanamine, N,N-dimethyl-

CAS No.: 75-50-3
Formula: C3H9N
Molar mass: 59.11 g/mol
PubChem CID: 1146

GHS pictograms

Flammable

Compressed gas

Corrosive

Harmful / Irritant

Health hazard

2D structure of Trimethylamine — 2D structure · PubChem CID 1146

Summary

Trimethylamine (C3H9N), CAS 75-50-3. 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).

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
H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

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.

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 Trimethylamine flammable?+

Yes. Trimethylamine (CAS 75-50-3) 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 Trimethylamine?+

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 Trimethylamine be stored?+

Store Trimethylamine (CAS 75-50-3) 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 Trimethylamine dangerous for the environment?+

No specific environmental pictogram (GHS09) is listed in our records for Trimethylamine, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.

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

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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