Overview
n-Butylamine (CAS 109-73-9 ), also recognized by its FEMA 3130 designation in flavor applications, is a primary aliphatic amine used across chemical synthesis, polymer processing, and flavor manufacturing.
It functions as a reactive intermediate and pH modifier in a broad range of industrial formulations. In flavor and fragrance production, n-butylamine contributes to the synthesis of aroma compounds.
The material is approved under FEMA 3130 for use in food-grade flavor systems. Polymer and rubber manufacturers use it as a curing agent and cross-linking intermediate in various industrial processes.
It is particularly useful in the production of vulcanized rubber and epoxy systems. Personal care formulators incorporate it as a pH-adjusting agent in products where controlled alkalinity is required.
This chemical also serves as a building block in the synthesis of agrochemical intermediates, pharmaceuticals, and corrosion inhibitors. n-Butylamine is supplied as a liquid, typically in drums or IBCs.
Bulk tanker quantities are suited to industrial-scale procurement for large facilities. Technical grade is the standard commercial offering, with high-purity grades available for flavor and pharmaceutical synthesis.
Buyers should confirm concentration and grade specifications against their regulatory requirements. This is particularly important for food-contact or flavor end uses to ensure compliance with safety standards.
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Physical Properties
| Melting Point | -50 °C |
| Boiling Point | 78 °C |
| Density | 0.7327 g/cm³ @ Temp: 25 °C |
| Flash Point | 30 °F |
| Appearance | Butyl amines are highly flammable, colorless liquids (n-turns yellow on standing) with ammoniacal or fishlike odors. n-isomer: |
| Color | Clear |
| Odor | Fish-like; ammonia-like. |
| Form | Liquid |
| Water Solubility | MISCIBLE |
| Vapor Pressure | 68 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.401(lit.) |
| pH | 12.6 (100g/l, H2O, 20℃) |
| Log P | 0 at 25℃ |
Safety & Handling
Danger GHS02 GHS05 GHS07 GHS06 GHS08 Hazard Statements H225 Highly Flammable liquid and vapor H301 Toxic if swallowed H302 Harmful if swallowed H311 Toxic in contact with skin H312 Harmful in contact with skin H314 Causes severe skin burns and eye damage H318 Causes serious eye damage H330 Fatal if inhaled H331 Toxic if inhaled H332 Harmful if inhaled H335 May cause respiratory irritation H360 May damage fertility or the unborn child H370 Causes damage to organs H371 May cause damage to organs H372 Causes damage to organs through prolonged or repeated exposure H402 Harmful to aquatic life Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 In case of inadequate ventilation wear respiratory protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P320 Specific treatment is urgent (see … on this label). P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29211980 |
| UN Number | 1125 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 109-73-9
- EC Number
- 203-699-2
- Mol. Weight
- 73.14
- HS Code
- 29211980
- Category
- Amines