5-methyl-2-hexanone
Description
5-Methyl-2-hexanone (CAS 110-12-3), commercially known as MIAK or methyl isoamyl ketone, is a mid-chain ketone solvent used across industrial coating and flavoring applications.
Its slow evaporation rate makes it a preferred choice where controlled drying and film formation are required. MIAK also functions as a flavoring agent, contributing fruity, ethereal notes to finished products.
In printing inks and industrial coatings, MIAK acts as a coalescing solvent that improves flow and leveling while extending open time during application. Metalworking and lubricant formulators incorporate it.
It is used as a carrier solvent in cleaning and degreasing compounds where residue-free evaporation is critical. In personal care, it appears in nail care formulations and fragrance compositions.
Food and beverage manufacturers use MIAK as a FEMA-approved flavoring agent to deliver fruity and green top notes in confectionery, baked goods, and beverages for various markets.
MIAK is supplied as a clear liquid in standard drum and IBC packaging suited for industrial volumes. It is available in technical grade for solvent applications and in flavor-grade specifications.
These specifications meet FCC requirements. Purity levels typically range from 98% to 99%+ depending on the intended application grade and the specific needs of the industrial formulator.
Physical Properties
| Melting Point | -74 °C |
| Boiling Point | 144 °C |
| Density | 0.888 g/cm³ @ Temp: 20 °C |
| Flash Point | 106 °F |
| Appearance | MIAK is a colorless liquid with a pleasant, fruity odor. |
| Color | Clear colorless |
| Odor | pleasant odor |
| Form | Liquid |
| Water Solubility | 5.4 g/L (20 ºC) |
| Vapor Pressure | 4.5 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.406(lit.) |
| Log P | 1.88 at 25℃ |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29141910 |
| UN Number | 2302 |
| ADR Class | 3 |
| Packing Group | III |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Documentation
Other Names
MIAK|Methyl isopentyl ketone|Methyl isoamyl ketone|Ketone, methyl isoamyl|Isopentyl methyl ketone|Isoamyl methyl ketone|5-Methylhexan-2-one [UN2302] [Flammable liquid]|5-Methylhexan-2-one
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