Home › Chemicals › Butylamine CAS 109-73-9: Butylamine (C4H11N) Identity CAS Number 109-73-9 Molecular Formula C4H11N IUPAC Name butan-1-amine Molecular Weight 73.14 g/mol SMILES CCCCNSynonyms n-butylamine, 1-aminobutane, butan-1-amine, monobutylamine
2D Structure
Physical Properties Density 0.741 g/mL at 25°C Boiling Point 77.0°C Melting Point -49.0°C Flash Point -7.0°C Vapor Pressure 13.0 kPa at 20°C Refractive Index nD = 1.401 Dielectric Constant ε = 5.0
Safety & GHS Classification Flammable GHS05 GHS06 GHS09
H225: Highly flammable liquid and vapor H301: Toxic if swallowed H311: Toxic in contact with skin H314: Causes severe skin burns and eye damage H331: Toxic if inhaled H400: Very toxic to aquatic life Storage: Store in cool, well-ventilated area. Extremely flammable — keep away from all ignition sources. Strongly alkaline — corrosive to metals. Store away from acids and oxidizers. Use in fume hood with full PPE.
Material Compatibility Matrix Plastics Material Rating PTFE Excellent PVC Fair PE Good PP Good PEEK Excellent PVDF Good
Rubbers Material Rating Viton Good NBR Good EPDM Excellent Silicone Good FKM Good
Metals Material Rating Stainless 316 Excellent Aluminum Fair Copper Fair Brass Fair
Applications Chemical intermediate for rubber accelerators Pharmaceutical intermediate Dye and pigment manufacturing Pesticide intermediate Corrosion inhibitor in petroleum refining Laboratory reagent for organic synthesis Emulsifier for asphalt and coatings External References: PubChem
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