Methylamine
| Formula: | CH₃NH₂ |
| CAS Number: | 74-89-5 |
| EC Number (EINECS): | 200-827-9 |
| HS Code: | 29212990 |
| UN Number: | 2067 (for anhydrous gas), 2050 (for aqueous solution) |
| IUPAC Name: | Methanamine |
| Also Known As: | Aminomethane; Monomethylamine |
| Molecular Weight, g/mol: | 31.06 |
Typical Specifications
| Appearance: | Colorless gas or aqueous solution |
| Odor: | Pungent, ammonia-like |
| Melting Point, °C: | -93 |
| Boiling Point, °C: | -6.3 |
| Flash Point, °C: | -7 |
| Solubility: | Miscible with water and alcohols |
| pH (1% solution): | ~11 |
| Vapor Pressure (at 20°C): | 1.25 MPa (aqueous solution) |
| Purity, %: | ≥40% (aqueous), ≥99% (anhydrous gas) |
| Grades Available: | Gas, Aqueous Solution (33–40%), Technical |
| Packaging: | Cylinder (gas), drums/IBC (solution) |
Applications / Uses
Primary Applications
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Raw material in production of pharmaceuticals and agrochemicals
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Precursor for methylated amines, solvents, and intermediates
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Used in production of dyes, rubber chemicals, and surfactants
Secondary Applications
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Gas treatment and purification
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Corrosion inhibitors
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Water treatment chemicals
End Industries Served: Chemicals, Pharmaceuticals, Agrochemicals, Rubber, Water Treatment, Dyes & Pigments
Safety & Handling Information
Hazard Class (GHS): Flammable gas (Category 1), Corrosive (aqueous solution)
Hazard Statements (H-Codes):
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H220: Extremely flammable gas
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H314: Causes severe skin burns and eye damage (solution)
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H335: May cause respiratory irritation
Precautionary Statements (P-Codes):
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P210: Keep away from heat, sparks, open flames
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P280: Wear protective gloves/eye protection
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
Storage Conditions
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Store in tightly closed cylinder or container
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Keep in cool, dry, well-ventilated area
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Protect from heat, sparks, and ignition sources
Transport Information
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ADR/RID: Class 2.3 / 8, UN2067 or UN2050
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IMDG: Class 2.3 / 8, UN2067 or UN2050
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IATA: Class 2.3 / 8, UN2067 or UN2050