Methanamine

CAS 74-89-5 CH₅N MW 31.1000 Danger OSHA PEL listed NIOSH data available

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Gas Cylinder

Corrosion

Skull and Crossbones

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Health Hazard

Emergency: 911 | Poison Control: 1-800-222-1222

Recommended safety equipment

Personal protective equipment commonly recommended for the hazard classes shown above.

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Hazard Statements

Code	Statement	Hazard Class
`H220`	Extremely flammable gas	Flammable gases
`H280`	Contains gas under pressure; may explode if heated	Gases under pressure
`H301`	Toxic if swallowed	Acute toxicity, oral
`H314`	Causes severe skin burns and eye damage	Skin corrosion/irritation
`H318`	Causes serious eye damage	Serious eye damage/eye irritation
`H332`	Harmful if inhaled	Acute toxicity, inhalation
`H335`	May cause respiratory irritation	Specific target organ toxicity, single exposure; Respiratory tract irritation
`H340`	May cause genetic defects	Germ cell mutagenicity
`H373`	May causes damage to organs through prolonged or repeated exposure	Specific target organ toxicity, repeated exposure

Precautionary Statements

Code	Statement
`P203`	Obtain, read and follow all safety instructions before use.
`P210`	Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking.
`P222`	Do not allow contact with air.
`P260`	Do not breathe dust/fume/gas/mist/vapors/spray.
`P261`	Avoid breathing dust/fume/gas/mist/vapors/spray.
`P264`	Wash hands [and ...] thoroughly after handling.
`P264+P265`	Wash hands [and ...] thoroughly after handling. Do not touch eyes.
`P270`	Do not eat, drink or smoke when using this product.
`P271`	Use only outdoors or in a well-ventilated area.
`P280`	Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
`P301+P316`	IF SWALLOWED: Get emergency medical help immediately.
`P301+P330+P331`	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
`P302+P361+P354`	IF ON SKIN: Take off Immediately all contaminated clothing. Immediately rinse with water for several minutes.
`P304+P340`	IF INHALED: Remove person to fresh air and keep comfortable for breathing.
`P305+P354+P338`	IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
`P316`	Get emergency medical help immediately.
`P317`	Get emergency medical help.
`P318`	if exposed or concerned, get medical advice.
`P319`	Get medical help if you feel unwell.
`P321`	Specific treatment (see information on this label and safety datasheet)).
`P330`	Rinse mouth.
`P363`	Wash contaminated clothing before reuse.
`P377`	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
`P381`	In case of leakage, eliminate all ignition sources.
`P403`	Store in a well-ventilated place.
`P403+P233`	Store in a well-ventilated place. Keep container tightly closed.
`P405`	Store locked up.
`P410+P403`	Protect from sunlight. Store in a well-ventilated place.
`P501`	Dispose of contents/container to ...

Exposure Limits

OSHA PEL	10 ppm
NIOSH REL	10 ppm
NIOSH IDLH	100 ppm
Skin Notation	Yes — can be absorbed through skin

Physical Properties

Colorless gas with a fish- or ammonia-like odor.

Boiling Point	20.3°F
Vapor Pressure	3.0 atm
Specific Gravity	0.693 at 20.3°F

NFPA 704 Diamond

Synonyms

aminomethane; methylamine (anhydrous); methylamine (aqueous); monomethylamine

Data Sources

GHS Classification: PubChem CID 6329
OSHA PEL: OSHA Occupational Chemical Database
NIOSH REL/IDLH: NIOSH Pocket Guide

Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.

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